Scientific
bibliography of Carl Djerassi
1946
1. The
Preparation and Partial Aromatization of 1, 4-Cho1estadienone-3 by the
Dienone-Pheno1 Rearrangement.
J.
A. C. S., 68, 1712 (1946).
by A. L. Wilds and C. Djerassi.
2. The
Dienone-Pheno1 Rearrangement Applied to Chrysene Derivatives. The Synthesis of
3-Hydroxy-1-methy1-chrysene and Related Compounds.
J.
A. C. S., 68, 1715 (1946).
by A. L. Wilds and C. Djerassi.
3. The
Preparation of 5-Methoxybenzene-1,2,3-tri-carboxylic Acid.
J.
A. C. S., 68, 1862 (1946).
by A. L. Wilds and C. Djerassi.
4. The
Synthesis of Estradiol and 1-Methy1estradio1 from Cholesterol.
J.
A. C. S., 68, 2125 (1946).
by A. L. Wilds and C. Djerassi.
5. Heterocyclic
Amines with Antihistaminic Activity.
J.
A. C. S., 68, 1999 (1946).
by
C. P. Huttrer, C. Djerassi, W. L. Beears, R. L. Mayer and C. R. Scholz.
1947
6. The
Ultraviolet Absorption Spectra of α,β-Un-saturated Ketones Conjugated
with an Aromatic Nucleus.
J.
A. C. S., 69, 1985 (1947).
by
A. L. Wilds, L. W. Beck, W. J. Close, C. Djerassi, J. A. Johnson, Jr.,
T. L. Johnson and C. H. Shunk.
7. Aryloxyacetamidines
and 2-(Aryloxymethyl)-imidazolines.
J.
A. C. S., 69, 1688 (1947).
by C. Djerassi and C. R. Scholz.
8. The
Bromination of Saturated 3-Ketosteroids with N-Bromo-Imides.
Experientia,
3, 107 (1947).
by C.
Djerassi and C. R. Scholz.
9. The
Bromination of 3-Ketosteroids in Acetic Acid and the Effect of Trace Substances
in the Solvent.
J.
A. C. S., 69, 2404 (1947).
by C. Djerassi and C. R. Scholz.
10. The
Method of Molecular Rotation Differences Applied to 3-Ketosteroids of the Allo
Series.
J.
Org. Chem., 12, 823 (1947).
by C. Djerassi.
1948
11. Brominations with
Pyridine Hydrobromide Perbromide.
J.
A. C. S., 70, 417 (1948).
by C.
Djerassi and C. R. Scholz.
12. The Preparation
and Dienone-Pheno1 Rearrangement of 2-Bromo-1,4-androstadien-17-o1-3-one
17-Hexahydrobenzoate.
J. A.
C. S., 70, 1911 (1948).
by C. Djerassi and C. R. Scholz.
13. Identification of
Crystalline Progesterone with 2,4-Dinitrophenylhydrazine.
Anal.
Chem., 20, 880 (1948).
by C. Djerassi.
14. 5-Methy1doisyno1ic
Acid and 1-Methy1estrone.
J.
Org. Chem., 13, 697 (1948).
by C. Djerassi and C. R. Scholz.
15. 2-(Benzhydryloxymethy1)
Imidazo1ine. A New Histamine Antagonist.
J.
Org. Chem., 13, 830 (1948).
by C. Djerassi and C. R. Scholz.
16. The Su1fonation
of Some Polycyclic Ketones.
J.
Org. Chem., 13, 848 (1948).
by C. Djerassi.
17. Brominations with
N-Bromosuccinimide and Related Compounds. The Wohl-Zieg1er Reaction.
Chem.
Rev., 43, 271 (1948).
by C. Djerassi.
1949
18. The Ultraviolet
Absorption Spectra of Steroidal Dinitropheny1hydrazones.
J.
A. C. S., 71, 1000 (1949).
by C. Djerassi and E. Ryan.
19. The Scope and
Mechanism of the Reaction of Dini-trophenylhydrazine with Steroidal Bromo
Ketones.
J.
A. C. S., 71, 1003 (1949).
by C. Djerassi.
20. Δ1-Desoxycorticosterone
Acetate.
Experientia,
5, 204 (1949).
by C.
Djerassi, C. R. Scholz and J. H. Leathem.
21. The Wohl-Zieg1er
Bromination of Enol Acetates of 20-Keto Steroids.
J.
Org. Chem., 14, 660 (1949).
by C. Djerassi and C. R. Scholz.
22. The Preparation
of Two Aromatic Analogs of Desoxycorticosterone Acetate.
J.
A. C. S., 71, 3962 (1949).
by C. Djerassi and C. R. Scholz.
1950
23. 2-(Aryloxymethyl)Thiazolines
and Penthiazolines.
J.
Org. Chem., 15, 694 (1950).
by C. Djerassi and C. R. Scholz.
24. 2-Substituted-4-(2-Dialkylaminoethyl)Thiazoles.
J.
Org. Chem., 15, 700 (1950).
by
C. Dierassi, R. H. Mizzoni and C. R. Scholz.
25. Preparation and
Derivatives of N-Substituted Glycinonitriles.
J.
A. C. S., 72, 3081 (1950).
by R. A. Turner and C. Djerassi.
26. Steroids II. A
Method for the Conversion of Allosteroids into Δ4-3-Ketosteroids.
J.
A. C. S., 72, 1046 (1950).
by
G. Rosenkranz, S. Kaufmann, J. Pataki and C. Djerassi.
27. Steroids III.
Bromination of Certain Keto-steroids and a Partial Synthesis of Estradiol,
Estrone and Equilenin.
Nature,
165, 814 (1950).
G.
Rosenkranz, C. Djerassi, S. Kaufmann, J. Pataki and J. Romo.
28. Steroids IV.
α-Iodoketones. A Method for the Conversion of Allosteroids into Δ4-3-Ketosteroids.
J.
A. C. S., 72, 4077 (1950).
by
G. Rosenkranz, O. Mancera, J. Gatica and C. Djerassi.
29. Steroids V. The
Synthesis of Adrenal Cortico-steroids and Analogs from
Allopregnan-3β-ol-20-one.
J.
A. C. S., 72, 4081 (1950).
by
G. Rosenkranz, J. Pataki, S. Kaufmann, J. Berlin and C. Djerassi.
30. Steroids VI. The
Wohl-Ziegler Bromination of Steroidal 1,4-dien-3-ones. Partial Synthesis of
Δ6-Dehydroestrone and Equilenin.
J.
A. C. S., 72, 4531 (1950).
by
S. Kaufmann; J. Pataki, G. Rosenkranz, J. Romo and C. Djerassi.
31. Steroids VII.
Contribution to the Bromination of Δ4-3-Ketosteroids and a New
Partial Synthesis of the Natural Estrogens.
J.
A. C. S., 72, 4534 (1950).
by C.
Djerassi, G. Rosenkranz, J. Romo, S. Kaufmann and J. pataki.
32. Steroids VIII.
The Dienone-Phenol Rearrangement in the Steroid Series. Synthesis of a New
Class of Estrogens.
J.
A. C. S., 72, 4540 (1950).
by C.
Djerassi, G. Rosenkranz, J. Romo, J. pataki and S. Kaufmann.
33. Steroidal
Sapogenins IV. Nomenclature of the Steroidal Sapogenins.
Nature,
166, 104 (1950).
by
G. Rosenkranz and C. Djerassi.
34. Steroids IX. The
Dienone-Phenol Rearrangement in the Cholesterol Series.
J.
Org. Chem., 15, 896 (1950).
by
J. Romo, C. Djerassi and G. Rosenkranz.
35. Steroids XI.
l7-Ethynylandrostan-17β-ol and Androstane-2,17-dione.
J.
A. C. S., 72, 5750 (1950).
by C.
Djerassi, R. Yashin and G. Rosenkranz.
1951
36. Steroids XV. The
Bromination of 3-Ketosteroids of the Normal Series.
Experientia,
7, 93 (1951).
by C.
Djerassi and G. Rosenkranz.
37. Steroids XIV.
Studies in the 3,6-Dihydroxypreg-nane Series.
J.
Org. Chem., 16, 192 (1951).
by
O. Mancera, G. Rosenkranz and C. Djerassi.
38. Steroidal
Sapogenins VI. Synthesis of Δ7-22-Isoallospirosten-3β-ol
and Unsaturated Analogs.
J.
Org. Chem., 16, 298 (1951).
by
G. Rosenkranz, J. Romo, E. Batres and C. Djerassi.
39. Steroidal
Sapogenins VII. Experiments in the Hecogenin Series (part 1).
J.
Org. Chem., 16, 303 (1951).
by C.
Djerassi, H. Martinez and G. Rosenkranz.
40. Steroids X.
Aromatization Experiments in the Cholesterol Series.
J.
Org. Chem., 15, 1289 (1951).
by
J. Romo, G. Rosenkranz and C. Djerassi.
41. Steroids XVII. A
Steroidal Cyc1opropyl Ketone.
J.
A. C. S., 73, 2383 (1951).
by
A. Sandoval, G. Rosenkranz and C. Djerassi.
42. Steroids XII.
Aromatization Experiments in the Progesterone Series.
J.
A. C. S., 73, 1523 (1951).
by C.
Djerassi, G. Rosenkranz, J. Iriarte, J. Berlin and J. Romo.
43. Steroids XIII.
Reaction of α,β-Unsaturated Steroid Ketones with Benzylmercaptan.
Thioeno1 Ether Formation and 1,4-Addition.
J.
A. C. S., 73, 1528 (1951).
by
J. Romo, M. Romero, C. Djerassi and G. Rosenkranz.
44. The
Dienone-Pheno1 Rearrangement.
J.
A. C. S., 73, 990 (1951).
by
A. Sandoval, L. Miramontes, G. Rosenkranz and C. Djerassi.
45. Steroidal
Sapogenins VIII. Steroids XVIII. Synthesis of Δ7,9(11)-A11opregnadien-3β-ol-20-one
from Diosgenin and from Δ5-Pregnen-3β-ol-20-one.
J.
Org. Chem., 16, 754 (1951).
by C.
Djerassi, J. Romo and G. Rosenkranz.
46. The Synthesis of
1-Ethyl-2,5-Dimethyl-8-Methoxyphenanthrene.
J.
Org. Chem., 16, 899 (1951).
by
J. Jerran, O. Mancera, G. Rosenkranz and C. Djerassi.
47. The Effect of
Bromine Substitution upon the Ul-traviolet Absorption Spectra of α,β-Unsaturated
Ketones.
J.
A. C. S., 73, 3263 (1951).
by
A. L. Nussbaum, O. Mancera, R. Daniels, G. Rosenkranz and C. Djerassi.
48. Steroids XXII.
The Synthesis of 19-Norprogeste-rone.
J.
A. C. S., 73, 3540 (1951).
by
L. Miramontes, G. Rosenkranz and C. Djerassi.
49. Steroids XXIV.
Introduction of the 11-Keto and 11α-Hydroxy Groups into Ring C
Unsubstituted Steroids.
J.
A. C. S., 73, 3546 (1951).
by
G. Stork, J. Romo, G. Rosenkranz and C. Djerassi.
50. Steroids XXV.
Synthesis of Cortisone.
J. A.
C. S., 73, 4055 (1951).
by
G. Rosenkranz, J. Pataki and C. Djerassi.
51. Steroids XXVI.
Cortical Hormones from A11oste-roids: Synthesis of Cortisone from Reichstein's
Compound D.
Nature,
168, 28 (1951).
by
G. Rosenkranz, C. Djerassi, R. Yashin and J. Pataki.
52. Steroida1
Sapogenins IX. Oxidation of Δ5,16,20(22)-Furostatriene-3β,26-diol.
J.
A. C. S., 73, 3820 (1951).
by
A. Sandoval, J. Romo, G. Rosenkranz, S. Kaufmann and C. Djerassi.
53. Steroidal
Sapogenins XI. Experiments in the Hecogenin Series (part 2).
J.
Org. Chem., 16, 1278 (1951).
by C.
Djerassi, H. Martinez and G. Rosenkranz.
54. Steroids XXVIII.
Introduction of the 11-Keto and 11α-Hydroxy Groups into Ring C
Unsubstituted Steroids (part 2).
J.
A. C. S., 73, 4496 (1951).
by C.
Djerassi, O. Mancera, G. Stork and G. Rosenkranz.
55. Steroidal
Sapogenins X. Unsaturated 22-Isospirosten-3-ones.
J.
A. C. S., 73, 4654 (1951).
by
R. Yashin, G. Rosenkranz and C. Djerassi.
56. Steroids XX.
Cyclic Steroidal Hemithioketa1s.
J.
A. C. S., 73, 4961 (1951).
by
J. Romo, G. Rosenkranz and C. Djerassi.
57. Steroidal
Sapogenins XII. The Configuration of the Hydroxyl Groups in Kammogenin,
Yuccagenin, Li1agenin and Gitogenin.
J.
A. C. S., ll., 5375 (1951).
58. Steroids XXI. Δ7-Androstene-3β,17β-diol.
J.
A. C. S., 73, 5478 (1951).
by
F. Neumann, G. Rosenkranz, J. Romo and C. Djerassi.
59. Steroids XXIII. Δ7,9(11)-Allopregnadiene-3β,20β-dio1
and Related Compounds.
J.
A. C. S., 73, 5489 (1951).
by
J. Romo, G. Rosenkranz and C. Djerassi.
60. Steroidal
Sapogenins XV. Experiments in the Hecogenin Series (part 3). Conversion to
Cortisone.
J.
A. C. S., 73, 5513 (1951).
by C.
Djerassi, H. J. Ringold and G. Rosenkranz.
61. Steroidal
Sapogenins XIV. Δ4,6-22-Isospirostadien-3β-ol and Δ2,4,6-22-Isospirostatriene.
J.
Org. Chem., 16, 1873 (1951).
by
J. Romo, H. J. Ringold, G. Rosenkranz and C. Djerassi.
1952
62. Steroidal
Sapogenins XIII. Δ8(9)-22-Isospirosten-3α-ol.
J.
A. C. S., 74, 422 (1952).
by C.
Djerassi, R. Yashin and G. Rosenkranz.
63. Steroids XXVII.
Synthesis of A11opregnane-3β, 11β,17α,20β,21-Pento1 from
Cortisone and Diosgenin.
J.
Biol. Chem., 194, 115 (1952).
by C.
Djerassi, G. Rosenkranz, J. Pataki and S. Kaufmann.
64. Steroids
XXIX. Synthesis of 11β-Hydroxyprogesterone.
J.
Org. Chem., 17, 290 (1952).
by
G. Rosenkranz, J. Pataki and C. Djerassi.
65. Steroidal
Sapogenins XVI. Introduction of the 11-Keto and 11α-Hydroxy Groups into
Ring C Unsubstituted Steroids (part 3). 11-Oxygenated Sapogenins.
J.
A. C. S., 74, 1712 (1952).
by C.
Djerassi, E. Batres, M. Velasco and G. Rosenkranz.
66. Steroidal
Sapogenins XVII. 22-Isoallospirost-8(14)-en-3β-ol and
3β-Hydroxya11opregn-8(14)-en-20-one.
J.
Chem. Soc., 1021 (1952).
by 0
Mancera, D. H. R. Barton, G. Rosenkranz and C. Djerassi.
67. Steroidal
Sapogenins XVIII. Experiments in the 5,6-Dihydrokryptogenin Series.
J.
Org. Chem., 11, 426 (1952).
by
A. L. Nussbaum, A. Sandoval, G. Rosenkranz and C. Djerassi.
68. Steroids
XXXI. Introduction of the 11-keto and 11α-Hydroxy Groups into Ring C
Unsubstituted Steroids (part 4). Saturated 7, 11-Diones.
J.
A. C. S., 74, 2918 (1952).
by
J. Romo, G. Stork, G. Rosenkranz and C. Djerassi.
69. Steroids
XXXII. Introduction of the 11-Keto and 11α-Hydroxy Groups into Ring C Unsubstituted
Steroids (part 5). Δ8-7-Ketones.
J.
A. C. S., 74, 3321 (1952).
by C.
Djerassi, O. Mancera, M. Velasco, G. Stork and G. Rosenkranz.
70. Steroids
XXXIII. Δ7-Allopregnene-3β,17α-diol-20-one
and Related Compounds.
J.
A. C. S., 74, 3436 (1952).
by
J. Pataki, G. Rosenkranz and C. Djerassi.
71. Steroidal
Sapogenins XIX. Sodium Borohydride Reduction of 3-Acetoxy-Δ3,5,7-22-Isospirostatriene
and 3-Acetoxy-Δ3,5,7,9(11)-22-Isospirostatetraene.
J.
A. C. S., 74, 3441 (1952).
by
H. J. Ringold, G. Rosenkranz and C. Djerassi.
72. Steroidal
Sapogenins XX. Synthesis and Reactions of the Epimeric Δ5-22-Isospirosten-3β,7-diols.
J.
A. C. S., 74, 3318 (1952).
by
H. J. Ringold, G. Rosenkranz and C. Djerassi.
73. Steroidal
Sapogenins XXII. Steroids XXXIV. Degradation of 11-0xygenated Sapogenins. Synthesis of
Allopregnane-3β,11β-diol-20-one and
Allopregnane-3β,11α-diol-20-one.
J.
A. C. S., 74, 3634 (1952).
by C.
Djerassi, E. Batres, J. Romo and G. Rosenkranz.
74. Steroids XXXIX.
Synthesis of Δ4-Pregnene-11α,17α,21-triol-3,20-dione,
the 11-epimer of Kendall's Compound F.
Chem. & Ind., 783 (1952).
by J. Romo, A. Zaffaroni, J. Hendrichs, G.
Rosenkranz, C. Djerassi and F. Sondheimer.
75. Steroidal
Sapogenins XXI. Identification by the Absorption Spectra of their Sulfuric Acid
Chromogens.
J.
Org. Chem., 17, 747 (1952).
by
G. Diaz, A. Zaffaroni, G. Rosenkranz and C. Djerassi.
76. Steroidal
Sapogenins XXIII. Introduction of the 11-Keto and 11α-Hydroxy Groups into
Ring C Unsubstituted Steroids (part 6). New Approach to 11-Oxygenated Steroids.
J.
A. C. S., 74, 2696 (1952).
by
F. Sondheimer, R. Yashin, G. Rosenkranz and C. Djerassi.
77. Steroids XXXV.
Synthesis of llα-Hydroxyprogesterone.
J.
Org. Chem., 17, 1066 (1952).
by
O. Mancera, J. Romo, F. Sondheimer, G. Rosenkranz and C. Djerassi.
78. Steroids
XXXVII. A Ten Step Conversion of Progesterone to Cortisone.
J. A. C. S., 74, 3711 (1952).
by O. Mancera, A. Zaffaroni, B. A. Rubin, F.
Sondheimer, G. Rosenkranz and C. Djerassi.
79. Steroids
XXXVIII. Synthesis of Allopregnane-3,11,20-trione-17α,21-diol
(Dihydroallocortisone) from Allopregnan-3β-ol-11,20-dione.
J.
A. C. S., 74, 5615 (1952).
by
J. Pataki, G. Rosenkranz and C. Djerassi.
80. Steroids XXX.
Partial Synthesis of Allopregnane-3β,11β,21-triol-20-one and
Allopregnane-3β,11β,17α,21-tetrol-20-one.
J.
Biol. Chem., 195, 751 (1952).
by
J. Pataki, G. Rosenkranz and C. Djerassi.
81. Steroids XXXVI.
Desu1furization Experiments in the 7-Ketopregnane Series.
J.
Org. Chem., 17, 1413 (1952).
by
J. Romo, G. Rosenkranz and C. Djerassi.
1953
82. Steroidal
Sapogenins XXV. Experiments in the Hecogenin Series (part 4). Degradation of 22α-5α-Spirostane-3β,12β-diol-11-one.
J.
A. C. S., 75, 239 (1953).
by
H. Martinez, H. J. Ringold, G. Rosenkranz and C. Djerassi.
83. Steroidal
Sapogenins XXIV. Synthesis and Side Chain Degradation of Δ7-22a-Spirosten-3β-ol.
J. Org. Chem., 18, 92 (1953).
by M. Velasco, J. Rivera, G. Rosenkranz, F.
Sondheimer and C. Djerassi.
84. Steroids
XLI. Synthesis of
11α,17α-Dihydroxy-progesterone and of
11α,17α,21-Trihydroxyprogesterone, the 11-epimer of Kendall's
Compound F.
J.
A. C. S., 75, 1277 (1953).
by
J. Romo, G. Rosenkranz, C. Djerassi and F. Sondheimer.
85. Steroids
XLII. Steroidal Sapogenins XXVI. The Chemical Reduction of Δ8-11-Keto and of
Saturated 11-Keto Steroids. A New Approach to 11-Keto and 11α-Hydroxy
Steroids.
J.
A. C. S., 75, 1282 (1953).
by
F. Sondheimer, O. Mancera, G. Rosenkranz and C. Djerassi.
86. Steroids XLIII. A
Ten Step Conversion of Progesterone to Cortisone. The Differential Reduction of
Pregnane-3,20-diones with Sodium Borohydride.
J.
A. C. S., 75, 1286 (1953).
by
O. Mancera, H. J. Ringold, C. Djerassi, G. Rosenkranz and F. Sondheimer.
87. The Dehydration
of a Steroidal Δ8-11α-Hydroxy-7-Ketone.
J.
A. C. S., 75, 1745 (1953).
by
A. J. Lemin, G. Rosenkranz and C. Djerassi.
88. Terpenoids I. The
Triterpenes of the Cactus Lemaireocereus Thurberi.
J.
A. C. S., 75, 2254 (1953).
by C.
Djerassi, L. E. Geller and A. J. Lemin.
89. Steroids
XLIV. Synthesis of Δ4-Pregnene-11α,21-diol-3,20-dione
Diacetate, the 11-Epimer of Corticosterone Acetate.
J.
A. C. S., 75, 2601 (1953).
by
F. Sondheimer, G. Rosenkranz, O. Mancera and C. Djerassi.
90. Synthesis and
Reactions of Chlorinated 3-Keto-steroids.
J.
A. C. S., 75, 3500 (1953).
by
J. J. Beereboom, C. Djerassi, D. Ginsburg and L. F. Fieser.
91. α-Iodoketones
(part 2). Reaction of Enol Acetates with N-Iodosuccinimide.
J.
A. C. S., 75, 3493 (1953).
by C. Djerassi and C. T. Lenk.
92. Steroidal
Sapogenins XXVII. The Stereochemistry of the Catalytic Hydrogenation of Δ8-11-Keto
Steroids. Synthesis of 8-Iso and
14-Iso-11- Keto Sapogenins.
J.
A. C. S., 75, 3496 (1953).
by C. Djerassi, W. Frick, G. Rosenkranz and
F. Sondheimer.
93. Steroids
XLV. Introduction of
the 11-Keto and 11α-Hydroxy Groups into Ring C Unsubstituted Steroids
(part 8). Performic Acid Oxidation
of 7,9(11)-dienes.
J.
A. C. S., 75, 3505 (1953).
by C.
Djerassi, O. Mancera, J. Romo and G. Rosenkranz.
94. Alkaloid Studies
I. The Isolation of Pilocereine
from the Cactus Lophocereus schottii.
J.
A. C. S., 75, 3632 (1953).
by C.
Djerassi, N. Frick and L. E. Geller.
95. Studies in
Organic Sulfur Compounds V. Synthesis of 21-Thio1acetates of Adrenal Cortical
Hormones.
J.
A. C. S., 75, 3700 (1953).
by C.
Djerassri and A. L. Nussbaum.
96. Studies in
Organic Sulfur Compounds VI. Cyclic Ethylene and Trimethylene Hemithioketals.
J.
A. C. S., 75, 3704 (1953).
by C. Djerassri and M. Gorman.
97. Steroidal Sapogenins
XXVIII. The Reaction of Peracids with Enol Acetates of Δ8-7-Keto
and Δ8-11-Keto Steroidal Sapogenins.
J.
A. C. S., 75, 4428 (1953).
by
O. Mancera, L. Miramontes, G. Rosenkranz, F. Sondheimer and C. Djerassi.
98. Steroids XLVIII.
19-Norprogesterone, A Potent Progestational Hormone.
J.
A. C. S., 75, 4440 (1953).
by C.
Djerassi, L. Miramontes and G. Rosenkranz.
99. Steroidal
Sapogenins XXIX. Experiments in the Hecogenin Series (part 5).
22a-5β-Spirostan-3α-ol-12-one.
J.
A. C. S., 75, 4885 (1953).
by C. Djerassi, A. J. Lemin, H. Martinez, G.
Rosenkranz and F. Sondheimer.
100. Oxidations with Ruthenium
Tetroxide.
J.
A. C. S., 75, 3838 (1953).
by C. Djerassi and R. R. Engle.
101. Steroids XLIX.
19-Nor-Desoxycorticosterone, A Potent Mineralocorticoid Hormone.
J.
A. C. S., 75, 4117 (1953).
by
A. Sandoval, L. Miramontes, G. Rosenkranz, C. Djerassi and F.
Sondheimer.
102. Steroidal Sapogenins XXX.
Synthesis and Side Chain Degradation of 22a-5β-Spirostan-3α-ol-11-one
Acetate.
J.
A. C. S., 75, 4430 (1953).
by
G. Rosenkranz, M. Velasco, C. Djerassi and F. Sondheimer.
103. Terpenoids II. Experiments in the Cafestol Series.
J.
Org. Chem., 18, 1449 (1953).
by C.
Djerassi, E. Wilfred, L. Visco and A. J. Lemin.
104. Terpenoids III. The Isolation
of Erythrodiol, Oleanolic Acid and a New Triterpene Triol, Longispinogenin from
the Cactus Lemaireocereus longispinus.
J.
A. C. S., 75, 5940 (1953).
by C.
Djerassi, R. M. McDonald and A. J. Lemin.
105. Alkaloid Studies II. Isolation of Reserpine and Narcotine
from Rauwolfia Heterophylla.
J.
A. C. S., 75, 5446 (1953).
by C.
Djerassi, M. Gorman, A. L. Nussbaum and J. Reynoso.
106. Synthesis of Cortisone and
Related Steroids.
Vitamins
and Hormones (Academic Press), 11, 205 (1953).
by C. Djerassi.
107. Synthesis of 11-Oxygenated
Steroids from Plant Sources.
Recent
Progress in Hormone Research (Academic Press), 8, 1 (1953).
by
G. Rosenkranz, F. Sondheimer, O. Mancera, J. Pataki, H. J. Ringold, J. Romo, C.
Djerassi and G. Stork.
108. Synthesis of 11-Oxygenated
Steroids from Steroidal Sapogenins.
Ciba
Foundation Colloquia on Endocrinology (Churchill, Ltd.), 7, 79-95
(1953).
by C.
Djerassi and G. Rosenkranz.
1954
109. Terpenoids IV. The Structures
of the Cactus Triterpenes Gummosogenin and Longispinogenin.
Chem.
& Ind., 161 (1954).
by C.
Djerassi, L. E. Geller and A. J. Lemin.
110. The Dienone-Phenol
Rearrangement in the Benzo (c)-phenanthrene Series. A Case of Concurrent Methyl
and Methylene Migration.
J.
A. C. S., 76, 1741 (1954).
by C.
Djerassi and T. T. Grossnickle.
111. α-Iodoketones (part 3).
Synthesis of 21-Iodo-Δ16-20-keto Steroids by the
N-Iodosuccinimide-Enol Acetate Reaction.
J.
A. C. S., 76, 1722 (1954).
by C. Djerassri and C. T. Lenk.
112. Terpenoids V. The Isolation
of Iresin, A New Sesquiterpene Lactone.
J.
A. C. S., 76, 2966 (1954).
by C.
Djerassi, P. Sengupta, J. Herran and F. Walls.
113. Terpenoids VI.
Dumortierigenin, A New Triterpene Lactone from the Cactus Lemaireocereus
dumortieri.
J.
A. C. S., 76, 2969 (1954).
by C.
Djerassi, E. Farkas, A. J. Lemin, J. C. Collins and F. Walls.
114. Terpenoids VII. Experiments
in the Glycyrrhetic Acid Series.
J.
A. C. S., 76, 4085 (1954).
by C. Djerassi and C. M. Foltz.
115. Terpenoids VIII. The
Structures of the Cactus Triterpenes Gummosogenin and Longispinogenin.
J.
A. C. S., 76, 4089 (1954).
by C.
Djerassi, L. E. Geller and A. J. Lemin.
116. Steroids LIV. Synthesis of
19-Nor-17α-Ethynyltestosterone and 19-Nor-17α-Methyl-testosterone.
J.
A. C. S., 76, 4092 (1954).
by C.
Djerassi, L. Miramontes, G. Rosenkranz and F. Sondheimer.
117. Steroidal Sapogenins XXXVII.
Experiments in the Hecogenin Series (part 6). Conversion to Cortisone.
J.
A. C. S., 76, 5533 (1954).
by C.
Djerassi, H. J. Ringold and G. Rosenkranz.
118. Steroidal Sapogenins XXXIV.
Introduction of the 11-oxo- and the 11α-Hydroxy Group into Ring C
Unsubstituted Steroids (part 9). The Epoxides of Δ7,9(11)-5α-Hydroxy
Sapogenins.
J.
Chem. Soc., 2346 (1954).
by C. Djerassi, A. J. Lemin, G. Rosenkranz
and F. Sondheimer.
119. Synthesis and Reactions of
Mixed Bromo-chloro 3-Ketosteroids.
J.
Org. Chem., 19, 1196 (1954).
by
J. J. Beereboom and C. Djerassi.
120. Lead Tetraacetate Oxidation
of Steroidal Glycols. Some Observations on Quabagenin.
J.
Org. Chem., 19, 1351 (1954).
by C. Dierassi and R. Ehrlich.
121. Alkaloid Studies III. Isolation of Pilocereine and
Anhalonidine from Four Cactus Species.
J.
A. C. S., 76, 3215 (1954).
by C.
Djerassi, C. R. Smith, S. P. Marfey, R. N. McDonald, A. J. Lemin, S. K.
Figdor and H. Estrada.
122. Alkaloid Studies IV. The
Isolation of Reserpine, Serpentine and Ajmaline from Rauwolfia Heterophylla.
J.
A. C. S., 76, 4463 (1954).
by C.
Djerassi, M. Gorman, A. L. Nussbaum and J. Reynoso.
123. The Reaction of α-Halo
Ketones with 2-Pyridinethiol.
J.
A. C. S., 76, 4470 (1954).
by C. Djerassi and G. R. Pettit.
124. The Constitution of
Digitogenin.
Chem.
& Ind., 728 (1954).
by
C. Djerassi and T. T. Grossnickle.
125. The Constitution and
Stereochemistry of Samogenin, Markogenin and Mexogenin.
Chern.
& Ind., 1320 (1954).
by C.
Djerassi, J. Fishman, J. A. Moore.
126. Steroids
LV. Steroidal Sapogenins XXXV. Chemical Introduction of the 6β-Hydroxy
Group into Steroidal Δ4-3-Ketones by a Two Step Sequence.
J.
Org. Chem., 19, 1509 (1954).
by
J. Romo, G. Rosenkranz, C. Djerassi and F. Sondheimer.
127. The Conversion of Diosgenin
to Cortisone via 11-Ketosteroids of the 5β-Series.
J.
A. C. S., 76, 5672 (1954).
by A. J. Lemin and C. Djerassi.
128. Terpenoids XV. The
Constitution of Iresin. A New
Fundamental Sesquiterpene Skeleton.
J.
A. C. S., 76, 6410 (1954).
by C.
Djerassi, W. Ritte1, A. L. Nussbaum, F. W. Donovan and J. Herran.
129. Terpenoids IX. The
Constitution of Machaeric Acid.
Chem.
& Ind., 960 (1954).
by C.
Djerassi and A. E. Lippman.
130. Terpenoids X. The Triterpenes of the Cactus Lemaireocereus
hystrix.
J.
A. C. S., 76, 5780 (1954).
by C.
Djerassi and A. E. Lippman.
131. The Stereochemical Course of
the Reduction of a 14β-Δ8-11-0xo Steroid.
Chem.
& Ind., 1228 (1954).
by C.
Djerassi and G. H. Thomas.
132. Steroids LXIII. Synthesis of
Δ4-19-Norpregnene-11β,17β,21-triol-3,20-dione
(19-Norhydrocortisone) and related 19-Noradrena1 Hormones.
J.
A. C. S., 76, 6210 (1954).
by
A. Zaffaroni, H. J. Ringold, G. Rosenkranz, F. Sondheimer, G. H. Thomas and C.
Djerassi.
133. Terpenoids XII. The Constitution of the Cactus
Triterpene Cochalic Acid.
Chem.
& Ind., 1354 (1954).
by C.
Djerassi and G. H. Thomas.
134. Alkaloid Studies VI. Cuauchichicine, A New Diterpenoid
Alkaloid.
J.
A. C. S., 76, 5889 (1954).
by C.
Djerassi, C. R. Smith, S. K. Figdor, J. Herran and J. Romo.
1955
135. Terpenoids XI. Investigation
of Nine Cactus Species. Isolation of TWo New Triterpenes, Stellatogenin and
Machaeric Acid.
J.
A. C. S., 77, 1200 (1955).
by C.
Djerassi, L. H. Liu, E. Farkas, A. E. Lippman, A. J. Lemin, L. E. Geller,
R. N. McDonald and B. J. Taylor.
136. Terpenoids XIII. The
Structures of the Cactus Triterpenes Machaeric Acid and Machaerinic Acid.
J.
A. C. S., 77, 1825 (1955).
by C.
Djerassi and A. E. Lippman.
137. Terpenoids XIV. The
Stereochemistry of Sumaresinolic Acid and Its Conversion to Oleanolic Acid.
Helv.
Chim. Acta, 38, 1304 (1955).
by C. Djerassi, G. H. Thomas and O. Jeger.
138. Studies in Organic
Sulfur Compounds VII. Lithium Aluminum Hydride Reduction of Xanthates to
Mercaptans. Synthesis of Substituted β-Mercaptoethanols.
J.
A. C. S., 77, 568 (1955).
by C.
Djerassi, M. Gorman, F. X. Markley and E. B. Oldenburg.
139. Steroids LXI. Synthesis of
19-Nor-desoxy-corticosterone, A Potent Mineralocorticoid Hormone.
J.
A. C. S., 77, 148 (1955).
by
A. Sandoval, G. H. Thomas, C. Djerassi, G. Rosenkranz and F. Sondheimer.
140. Alkaloid Studies V. Synthesis
of 1-Isopropyl and
1-Isobutyl-2-methyl-6,7-dimethoxy-l,2,3,4-tetrahydroisoquinoline.
J.
A. C. S., 77, 484 (1955).
by C.
Djerassi, J. J. Beereboom, S. P. Marfey and S. K. Figdor.
141. The Stereochemistry of
Digitogenin.
Chem.
& Ind., 473 (1955).
by C.
Djerassi, T. T. Grossnickle and L. B.
High.
142. The Configuration of the
Hydroxyl Groups in Gitogenin.
Chem.
& Ind., 474 (1955).
by C.
Djerassi, L. B. High, T. T. Gross-nickle, R. Ehrlich, J. A. Moore and R. B.
Scott.
143. Terpenoids XVI. The
Constitution of the Cactus Triterpene Cocha1ic Acid. Partial Reductions of Methyl Diketoechinocystate.
J.
A. C. S., 77, 3579 (1955).
by C.
Djerassi, G. H. Thomas and H. Monsimer.
144. α-Iodoketones (part
4). The Reaction of
N-Iodosuccinimide with Enol Acetates of Δ4-3-Ketosteroids.
J.
A. C. S., 77, 3826 (1955).
by C.
Djerassi, J. Grossman and G. H. Thomas.
145. Constitution and
Stereochemistry of Samogenin, Markogenin and Mexogenin.
J.
A. C. S., 77, 4291 (1955).
by C. Djerassi and J. Fishman.
146. Optical Rotatory Dispersion
Studies I. The Androstane Series.
J.
A. C. S., 77, 4354 (1955).
by C.
Djerassi, E. W. Foltz and A. E. Lippman.
147. Optical Rotatory Dispersion
Studies II. Steroid Hormones.
J.
A. C. S., 77, 4359 (1955).
by
E. W. Fo1tz, A. E. Lippman and C. Djerassi.
148. Optical Rotatory Dispersion
Studies III. The Cho1estane Series.
J.
A. C. S., 77, 4364 (1955).
by
A. E. Lippman, E. W. Foltz and C. Djerassi.
149. Terpenoids XVII. The Cactus
Triterpenes Thurberogenin and Stellatogenin.
J.
A. C. S., 77, 5330 (1955).
by C.
Djerassi, E. Farkas, L. H. Liu and G. H. Thomas.
150. Studies in Organic Sulfur
Compounds VIII. Introduction of Oxygen in the Raney Nickel Desulfurization of
Hemithioketals (l,3-Oxathiolanes).
J.
A. C. S., 77, 4647 (1955).
by C.
Djerassi, M. Gorman and J. A. Henry.
151. Alkaloid Studies VII.
Tetraphyllin and Tetraphyllicine, Two New Alkaloids from Rauwolfia
Tetraphylla.
Chem.
& Ind., 627 (1955).
by C.
Djerassi and J. Fishman.
152. Correlation of Digitogenin
with Progesterone.
J.
A. C. S., 77, 3673 (1955).
by C.
Djerassi, L. B. High, J. Fried and E. F. Sabo.
153. Hydroxylation of
Desoxycorticosterone with Neurospora crassa.
J.
A. C. S., 77, 3926 (1955).
by
D. Stone, M. Hayano, R. I. Dorfman, O. Hechter, C. H. Robinson and C.
Djerassi.
154. Terpenoids XIX. The
Pentacyclic Skeleton of Cafestol.
J.
Org. Chem., 20, 1046 (1955).
by C.
Djerassi, H. Bendas and P. Sengupta.
155. Alkaloid Studies VIII. The
Structures of the Diterpenoid Alkaloids Laurifoline and Cuauchichicine.
J.
A. C. S., 77, 4801 (1955).
by C.
Djerassi, C. R. Smith, A. E. Lippman, S. K. Figdor and J. Herran.
l55a. The
Structures of the Diterpenoid Alkaloids Laurifoline and Cuauchichicine. Nomenclature Alteration.
J.
A. C. S., 77, 6633 (1955).
by C.
Djerassi, C. R. Smith, A. E. Lippman, S. K. Figdor and J. Herran.
156. Terpenoids XVIII. Saponin
from Ladino Clover (Trifolium repens).
J.
A. C. S., 77, 4936 (1955).
by
E. D. Walter, E. M. Bickoff, C. R. Thompson, C. H. Robinson and C. Djerassi.
157. The Conversion of
Androstane-3,17-dione to Androsterone.
J.
A. C. S., 77, 4925 (1955).
by C.
Djerassi, A. J. Manson and M. Gorman.
158. Terpenoids XX. Constitution
of Cafestol.
Chem.
& Ind., 1481 (1955).
by H. Bendas and C. Djerassi.
159. Terpenoids XXI. The
Constitution of the Cactus Triterpene Queretaroic Acid.
Chem.
& Ind., 1520 (1955).
by C.
Djerassi, J. A. Henry, A. J. Lemin and T. Rios.
160. Alkaloid Studies IX.
Rauwolfia Alkaloids IV. Isolation
of Reserpine and other Alkaloids from Rauwolfia sellowii Muell. Argov.
J.
A. C. S., 77, 6687 (1955).
by
S. C. Pakrashi, C. Djerassi, R. Wasicky and N. Neuss.
1956
161. Optical Rotatory Dispersion
Studies IV. Steroidal Sapogenins.
J.
A. C. S., 78, 440 (1956).
by C. Djerassi and R. Ehrlich.
162. Alkaloid Studies X. Alkaloids of Two Brazilian
Apocynaceae: Rauwolfia
Grandiflora
Mart. and Lochnera
(Vinca) Rosea (L.) Reichb. Var. Alba (Sweet) Hubbd.
Chem.
& Ind., 173 (1956).
by
W. B. Mors, P. Zaltzman, J. J. Beereboom, S. C. pakrashi and C. Djerassi.
163. Alkaloid Studies XI. The
Structures of Tetraphyllicine, Ajmalidine and Rauvomitine.
J.
A. C. S., 78, 1259 (1956).
by C.
Djerassi, M. Gorman, S. C. Pakrashi and R. B. Woodward.
164. Methymycin. Reduction and
Oxidation Studies.
J.
A. C. S., 78, 1729 (1956).
by
C. Djerassi; A. Bowers and H. N. Khastgir.
165. The Partial Structure of
Methymycin.
J.
A. C. S., 78, 1733 (1956).
by C.
Djerassi, A. Bowers, R. Hodges and B. Riniker.
166. 8-Isoprogesterone.
J.
Org. Chem., 21, 490 (1956).
by C.
Djerassi, A. J. Manson and A. Segaloff.
167. Steroids LXXXI.
Transformation of Sapogenins to Androgegs and Estrogens. Beckmann Rearrangement
of Δl-20-Ketosteroids.
J.
Org. Chem., 21, 520 (1956).
by
G. Rosenkranz, O. Mancera, F. Sondheimer and C. Djerassi.
168. Optical Rotatory Dispersion
Studies V. Effect of Isolated
Carbonyl Groups and Double Bonds in the Cholestane Series.
J.
A. C. S., 78, 3163 (1956).
by C.
Djerassi, W. Closson and A. E. Lippman.
169. Optical Rotatory Dispersion
Studies VI. The Bile Acid Series.
Polycarbonyl Compounds and Stereochemical Differentiations.
J.
A. C. S., 78, 3761 (1956).
by C. Djerassi and W. Closson.
170. Optical Rotatory Dispersion
Studies VII. Application to
Problems of Absolute Configurations.
J.
A. C. S., 78, 6362 (1956).
by C.
Djerassi, R. Riniker and B. Riniker.
171. Alkaloid Studies XII. Synthesis of Substituted
1-Isobutyl-2-methyl-1,2,3,4-tetrahydro-isoquinolines.
J.
Org. Chem., 21, 975 (1956).
by C.
Djerassi, F. X. Markley and R. Ehrlich.
172. Alkaloid Studies XIII. Isolation of Quebrachamine and of a New
Dihydroindole Alkaloid, Spegazzinine, from Aspidosperma
chakensis Spegazzini.
J.
Org. Chem., 21, 979 (1956).
by
O. O. Orazi, R. A. Corral, J. S. E. Holker and C. Djerassi.
173. 1-Methyl-19-norprogesterone
and 1-Methyl-19-nor-17α-hydroxyprogesterone.
J.
A. C. S., 78, 2479 (1956).
by C.
Djerassi, A. E. Lippman and J. Grossman.
174. An Unusual Cyclization in the
Naphthalene Series. Synthesis of
1-Ethylanthracene and of 4-Ethylphenanthrene.
J.
A. C. S., 78, 2474 (1956).
by C. Djerassi and H. Bendas.
175. The Constitution and
Stereochemistry of Digitogenin.
J.
A. C. S., 78, 3166 (1956).
by C.
Djerassi, T. T. Grossnickle and L. B. High.
176. The Structure of the
Antibiotic Methymycin.
J.
A. C. S., 78, 2907 (1956).
by C. Djerassi and J. A. Zderic.
177. Terpenoids XXII. Triterpenes
from Some Mexican and South American Plants.
J.
A. C. S., 78, 2312 (1956).
by C.
Djerassi, A. Bowers, S. Burstein, H. Estrada, J. Grossman, J. Herran, A. J.
Lemin, A. Manjarrez and S. C. Pakrashi.
178. Terpenoids XXIII.
Interconversion of Thurberogenin and Betu1inic Acid.
J.
A. C. S., 78, 3534 (1956).
by C. Djerassi and R. Hodges.
179. Terpenoids XXIV. The
Structure of the Cactus Triterpene Queretaroic Acid.
J.
A. C. S, 78, 3783 (1956).
by C.
Djerassi, J. A. Henry, A. J. Lemin, T. Rios and G. H. Thomas.
180. Terpenoids XXV. The Structure
of the Cactus Triterpene Dumortierigenin.
J.
A. C. S., 78, 5685 (1956).
by C.
Djerassi, C. H. Robinson and D. B. Thomas.
181. Alkaloid Studies XIV. The
Structure of the Cactus Alkaloid Pi1ocereine.
J.
A. C. S., 78, 3861 (1956).
by C.
Djerassi, S. K. Figdor, J. M. Bobbitt and F. X. Markley.
182. Optical Rotatory Dispersion
Studies VIII. α,β-Unsaturated Ketones and Solvent Effects.
J.
A. C. S., 78, 6377 (1956).
by C.
Djerassi, R. Riniker and B. Riniker.
183. Optical Rotatory Dispersion
Studies IX. Intermediates in the Total Synthesis of Steroids. Allotment of Absolute Configuration by
Rotatory Dispersion Measurements.
Chem.
& Ind., 988 (1956).
by C. Djerassi and W. K1yne.
184. 8-Isotestosterone.
J.
Org. Chem., 21, 1056 (1956).
by C.
Djerassi, H. Bendas and A. Sega1off.
185. The Structure of the
Antibiotic Methymycin.
J.
A. C. S., 78, 6390 (1956).
by C.
Djerassi and J. A. Zderic.
186. The Direct Conversion of
Steroidal Δ5-3β-Alcohols to Δ5- and Δ4-3-Ketones.
J.
Org. Chern., 21, 1547 (1956).
by C.
Djerassi, R. R. Engle and A. Bowers.
187. Alkaloid Studies XV.
Casimiroedine.
J.
Org. Chem., 21, 1510 (1956).
by C.
Djerassi, J. Herran, H. N. Khastgir, B. Riniker and J. Romo.
1957
188. Alkaloid Studies XVI.
Alkaloids of Rauwolfia tetraphylla L. The Structure of
Tetraphylline and Tetraphyllicine.
J.
A. C. S., 79, 1217 (1957).
by C.
Djerassi, J. Fishman, M. Gorman, J. P. Kutney and C. Pakrashi.
189. Terpenoids
XXVI. Cactus Triterpenes.
Chapter
in "Festschrift Arthur Stoll" (pp. 330 - 352) BirkhŠuser, Basel,
1957.
by C.
Djerassi.
190. Alkaloid Studies XVII. The
Structure of the Cactus Alkaloid Pilocereine.
J.
A. C. S., 79, 2203 (1957).
by C.
Djerassi, S. K. Figdor, J. M. Bobbitt and F. X. Markley.
191. Optical Rotatory Dispersion
Studies X. Determination of Absolute Configuration of
α-Halo-cyclohexanones.
J.
A. C. S., 79, 1506 (1957).
by C. Djerassi and W. Klyne.
192. The Structure of the
Antibiotic Neomethymycin.
J.
A. C. S., 79, 2022 (1957).
by C. Djerassi and O. Halpern.
193. Studies in Organic Sulfur
Compounds IX. Preparation and Desulfurization of Optically Active
1,1-Diphenyl-3-mercaptopropan-2-ol.
J.
A. C. S., 79, 2553 (1957).
by C. Djerassi and J. Grossman.
194. The Synthesis of
8-Isoprogesterone and 8-Isotestosterone.
Tetrahedron,
1, 22 (1957).
by
C. DjerassI, A. J. Manson and H. Bendas.
195. Terpenoids XXVII. The
Structure of the Cactus Triterpene Myrtillogenic Acid.
J.
A. C. S., 79, 2901 (1957).
by
C. Djerassi and H. G. Monsimer.
196. Terpenoids XXVIII. The
Triterpene Composition of the Genus Myrtillocactus.
J.
A. C. S., 79, 3525 (1957).
by C.
Djerassi, S. Burstein, H. Estrada, A. J. Lemin, A. E. Lippman, A. Manjarrez
and H. G. Monsimer.
197. Terpenoids XXIX. Iresin (part
2). A New Fundamental
Sesquiterpene Skeleton.
J.
A. C. S., 79, 3528 (1957).
by C. Djerassi and W. Rittel.
198. Steric Requirements in the
Cyclization of Naphthalene Derivatives.
J.
Org. Chem., 22, 393 (1957).
by C. Djerassi and G. R. Pettit.
199. Optical Rotatory Dispersion
Studies XI. Structure et
Dispersion Rotatoire.
Bull. Soc. Chim. France, 741 (1957).
by C. Djerassi.
200. The Synthesis of Some
14-Iso-11-Ketosteroids. Stereochemical Course of Chemical and Catalytic
Reduction of a 14β-Δ8-11-Ketosteroid.
J.
A. C. S., 79, 3835 (1957).
by C. Djerassi and G. H. Thomas.
201. Recording and Nomenclature of
Optical Rotatory Dispersion.
Proc.
Chem. Soc., 55 (1957). by C. Djerassi and W. Klyne.
202. Macrolide Antibiotics VI. A
Standard of Absolute Configuration Among Macrolide Antibiotics.
J.
A. C. S., 79, 3926 (1957).
by C. Djerassi and O. Halpern.
203. Optical Rotatory Dispersion
Studies XII. Absolute
Configuration of Eperuic and Labdanolic Acids.
Tetrahedron,
1, 238 (1957).
by C.
Djerassi and D. Marshall.
204. Alkaloid Studies XVIII. The Chemistry of Rosewood. Isolation and Structure of Anibine and
4-Methoxyparacotoin.
J.
A. C. S., 79, 4507 (1957).
by
W. B. Mors, O. R. Gottlieb and C. Djerassi.
205. Terpenoids XXX. The Structure of the Cactus Triterpene
Chichipegenin.
J.
A. C. S., 79, 4468 (1957).
by
A. Sandoval, A. Manjarrez, P. R. Leeming, G. H. Thomas and C. Dierassi.
206. Terpenoids XXXI. The Structure and Stereochemistry of
Medicagenic Acid.
J.
A. C. S., 79, 5292 (1957).
by C.
Djerassi, D. B. Thomas, A. L. Livingston and C. R. Thompson.
207. Optical Rotatory Dispersion
Studies XIII. Assignment of Absolute Configuration to Certain Members of the
Guaiano1ide Series of Sesquiterpenes.
J.
Org. Chem., 22, 1361 (1957).
by C.
Djerassi, J. Osiecki and W. Herz.
208. Application of Optical
Rotatory Dispersion Studies to Structural and Stereochemical Problems in
Organic Chemistry.
Abstracts
of the Fifteenth National Organic Chemistry Symposium, Rochester, June 1957,
pp. 12 - 20.
by C.
Djerassi.
209. Alkaloid Studies XIX. Alkaloids of Some Hawaiian Rauwolfia
Species. The Structure of Sandwicine and its Interconversion with Ajmaline and
Ajmalidine.
Tetrahedron,
1, 328 (1957).
by
M. Gorman, N. Neuss, C. Djerassi, J. P. Kutney and P. J. Scheuer.
1958
210. Terpenoids XXXII. The
Structure of the Cactus Triterpene Treleasegenic Acid. Ring Conformational Alterations in a
Pentacyclic Triterpene.
J.
A. C. S., 80, 1236 (1958).
by C. Djerassi and J. S. Mills.
211. Optical Rotatory Dispersion
Studies XIV. α-Haloketones (part 2).
J.
A. C. S., 80, 1216 (1958).
by C.
Djerassi, J. Osiecki, R. Riniker and B. Riniker.
212. Alkaloid Studies XX. Isolation and Structure of Two New
Cactus Alkaloids, Piloceredine and Lophocerine.
Tetrahedron,
2, 58 (1958).
by C.
Djerassi, T. Nakano and J. M. Bobbitt.
213. The Structure of the Cactus
Sterol Lophenol. A Link in Sterol
Biogenesis.
J.
A. C. S., 80, 1005 (1958).
by C.
Djerassi, J. S. Mills and R. Villotti.
214. Recent Advances in the
Chemistry of Steroid Transformation.
Abstract,
First National Medicinal Chemistry Symposium, June 25, 1958, pp. l3a - l3i.
by C. Djerassi.
215. Optical Rotatory Dispersion
Studies XV. Steroidal Ketols and
Cardiac Aglycones.
Helv.
Chim. Acta, 41, 250(1958).
by C.
Djerassi, O. Halpern, V. Halpern, O. Schindler and C. Tamm.
216. Terpenoids XXXIII. The Structure and Probable Absolute
Configuration of Cafestol.
J.
A. C. S., 80, 247 (1958).
by C.
Djerassi, M. Cais and L. A. Mitscher.
217. On the Absolute Configuration
of the Antibiotic Actidione.
J. A. C. S., 80, 1261 (1958).
by E. J. Eisenbraun, J. Osiecki and C. Djerassi.
218. †ber
die Konfiguration des 19-nor-10,14β,17α-Progesterons.
Ann.,
612, 93 (1958).
by C.
Djerassi, M. Ehrenstein and G. W. Barber.
219. Terpenoids XXXIV. Iresin
(part 3). Reactions of the Glycol
System.
J.
A. C. S., 80, 1972 (1958).
by C.
Djerassi, F. W. Donovan, S. Burstein and R. Mauli.
220. Steroids XCI. Microbiological Oxidations of
19-Norprogesterone.
Tetrahedron,
2, 165 (1958).
by
A. Bowers, C. Casas Campillo and C. Djerassi.
221. Alkaloid Studies XXI. Partial Structure of Casimiroedine.
Tetrahedron,
2, 167 (1958).
by C.
Djerassi, C. Bankiewicz, A. L. Kapoor and B. Riniker.
222. Steroids XCVI. The Synthesis
of Equilin.
J.
A. C. S., 80, 2596 (1958).
by
J. A. Zderic, A. Bowers, H. Carpio and C. Djerassi.
223. Terpenoids XXXV. The Structure and Absolute
Configuration of Iresin.
J.
A. C. S., 80, 2593 (1958).
by C. Djerassi and S. Burstein.
224. Naturally Occurring Oxygen
Heterocyclics II. Characterization
of an Insecticidal Principle from Mammea americana L.
J.
A. C. S., 80, 3686 (1958).
by C.
Djerassi, E. J. Eisenbraun, B. Gilbert, A. J. Lemin, S. P. Marfey and M. P.
Morris.
225. Optical Rotatory Dispersion
Studies XVI. Synthesis and
Conformation of Optically Active Octalones and Decalones.
J.
A. C. S., 80, 3986 (1958).
by C.
Djerassi and D. Marshall.
226. Optical Rotatory Dispersion
Studies XVII. Detection of Conformational Alterations. Effects of Alkyl Groups and Double
Bonds in Polycyclic System.
J.
A. C. S., 80, 4001 (1958).
by C.
Djerassi, O. Halpern, V. Halpern and B. Riniker.
227. Optical Rotatory Dispersion
Studies XVIII. Demonstration of
Conformational Mobility in 2-chloro-5-methylcyclohexanone.
Tetrahedron,
3, 319 (1958).
by C.
Djerassi and L. E. Geller.
228. Studies in Organic Sulfur
Compounds X. The Scope of the
Raney Nickel Desulfurization of Cyclic Hemithioketals (1,3-0xathiolanes and
1,3-0xathianes).
J.
A. C. S., 80, 4723 (1958).
by C.
Djerassi, M. Shamma and T. Y. Kan.
229. Macrolide Antibiotics VII. The Structure of Neomethymycin.
Tetrahedron,
3, 255 (1958).
by C.
Djerassi and O. Halpern.
230. Naturally Occurring Oxygen
Heterocyclics III. The Structure of the Isoflavone Tlatlancuayin.
J.
A. C. S., 80, 5258 (1958).
by
P. CrabbeÕ, P. R. Leeming and C. Djerassi.
231. Optical Rotatory Dispersion
Studies XIX. 8-Methylhydrindanones.
J.
A. C. S., 80, 4853 (1958).
by C.
Djerassi, D. Marshall and T. Nakano.
232. Optical Rotatory Dispersion
Studies XX. Transannular Nitrogen-Carbonyl Interaction in Cyclic Aminoketones
and Optical Rotatory Dispersion.
J.
A. C. S., 80, 4858 (1958).
by
N. J. Leonard, J. A. Adamcik, C. Djerassi and O. Halpern.
233. Steroids XCVII. Some Chemical
and Biological Properties of 19-nor-17α-Ethynyltestosterone.
Ann.
N. Y. Acad. Sci., 71, 500 (1958).
by D. A. McGinty and C. Djerassi.
234. Terpenoids XXXVI. Iresin
(part 4). Isolation and Structure of Three Sesquiterpenes Related to Iresin.
Bull.
Soc. Chim. Belg., 67, 632 (1958).
by
P. CrabbeÕ, S. Burstein and C. Djerassi.
235. Steroids XCVIII. Synthesis of Some
10β-Hydroxy-10-norsteroids.
J.
Org. Chem., 23, 1744 (1958).
by
J. Perez Ruelas, J. Iriarte, F. Kincl and C. Djerassi.
236. Steroids XCIX. Synthesis of Ring B Oxygenated Estrogens.
J.
A. C. S., 80, 6105 (1958).
by
J. Iriarte, H. J. Ringold and C. Djerassi.
237. Steroids C. Synthesis of
19-nor-Δ4-Pregnene-11β,17α,2l-triol-3,20-dione
(19-norhydrocortisone) and Related 19-nor-Adrenal Hormones.
J.
A. C. S., 80, 6110 (1958).
by
A. Zaffaroni, H. J. Ringold, G. Rosenkranz, F. Sondheimer, G. H. Thomas and C.
Djerassi.
238. Research Trends in the
Steroid Hormone Field.
Drug
Trade News, March 1958.
by C.
Djerassi and H. J. Ringold.
239. Steroids CII. Synthesis of
19-norprogesterone from Estrone.
J.
A. C. S., 80, 6118 (1958).
by
J. S. Mills, H. J. Ringold and C. Djerassi.
240. The Neutral Constituents of
the Cactus Lophocereus schottii. The Structure of Lophenol (4α-methyl-Δ-cholesten-3β-ol).
A Link in Sterol Biogenesis.
J.
A. C. S., 80, 6284 (1958).
by C.
Djerassi, G. W. Krakower, A. J. Lemin, L. H. Liu, J. S. Mills and R.
Villoti.
241. Macrolide Antibiotics
VIII. The Absolute Configuration
of Certain Centers in Neomethymycin, Erythromycin and Related Antibiotics.
Tetrahedron,
4, 369 (1958).
by C.
Djerassi, O. Halpern, D. I. Wilkinson and E. J. Eisenbraun.
242. Steroids CVIII. A New Class of Potent Cortical Hormones. 6α-Chlorocorticoids.
J. A. C. S., 80, 6464 (1958).
by H. J. Ringold, O. Mancera, C. Djerassi,
A. Bowers, E. Batres, H. Martinez, E. Necoechea, J. Edwards, M. Velasco, C.
Casas Campillo and R. I. Dorfman.
1959
243. Optical Rotatory Dispersion
Studies XXI. Effect of Ring Size.
J.
A. C. S., 81, 237 (1959).
by C.
Djerassi and G. W. Krakower.
244. Steroids CVII. Δ5(6)-19-Nor-Steroids.
A New Class of Potent Anabolic Agents.
J.
A. C. S., 81, 436 (1959).
by
J. Iriarte, C. Djerassi and H. J. Ringold.
245. Steroidal Sapogenins XXXVIII.
Synthesis of Cortisone from Botogenin.
J.
A. C. S., 81, 439 (1959).
by O. Halpern and C. Djerassi.
246. Reaction of the Steroidal
Sapogenin Spiroketa1 System with Ethanedithio1.
J.
Org. Chem., 24, 1 (1959).
by C.
Djerassi, O. Halpern, G. R. Pettit and G. H. Thomas.
247. Optical Rotatory Dispersion
Studies XXII. Detection and Stereochemical Implication of Hemiketa1 Formation.
J. A. C. S., 81, 947 (1959).
by C. Djerassi, L. A. Mitscher and B. J.
Mitscher.
248. Naturally Occurring Oxygen
Heterocyclics IV. The Methylation
of Pyronones.
J.
A. C. S., 81, 2427 (1959).
by
D. Herbst, W. B. Mors, O. R. Gottlieb and C. Djerassi.
249. Naturally Occurring Oxygen
Heterocyclics V. Mammein.
Tetrahedron
Letters, 1, 10 (1959).
by C.
Djerassi, E. J. Eisenbraun, R. A. Finnegan and B. Gilbert.
250. Alkaloid Studies XXII. The
Alkaloids of Vallesia Dichotoma Ruiz et Pav.
J.
Org. Chem., 24, 314 (1959).
by
J. S. E. Holker, M. Cais, F. A. Hochstein and C. Djerassi.
251. Steroids CXII. Cycloethylene
Ketal Formation of 19-Nor-Δ4-3-Keto Steroids.
J.
A. C. S., 81, 3120 (1959).
by
J. A. Zderic, D. Chavez Limon, H. J. Ringold and C. Djerassi.
252. Steroids
CXIII. 6-Methyl Estrogens.
J. Org. Chem., 24, 311 (1959).
by
E. Velarde, J. Iriarte, H. J. Ringold and C. Djerassi.
253. Steroids CXVI.
6α-Fluoro-l6α-Methylhydro-cortisone and Related Steroids.
Proc.
Chem. Soc., 87 (1959).
by
J. A. Edwards, A. Zaffaroni, H. J. Ringold and C. Djerassi.
254. Steroids
CXVII. 6α-Fluoro-l6α -Hydroxy
Cortical Hormones.
J.
A. C. S., 81, 1264 (1959).
by
J. S. Mills, A. Bowers, C. Casas Campillo, C. Djerassi and H. J.
Ringold.
255. Terpenoids XXXVII. The
Structure of the Pentacyclic Diterpene Cafestol. On the Absolute Configuration
of Diterpenes and Alkaloids of the Phyllocladene Group.
J.
A. C. S., 81, 2386 (1959).
by C.
Djerassi, M. Cais and L. A. Mitscher.
256. Optical Rotatory Dispersion
Studies XXIII. α-Haloketones
(part 3).
J.
A. C. S., 81, 2383 (1959).
by C.
Djerassi, I. Fornaguera and O. Mancera.
257. Research Trends in the
Steroid Hormone Field
Drug
Trade News, March 1959.
by C.
Djerassi and H. J. Ringold.
258. Optical Rotatory Dispersion
Studies XXIV. Effect of Distance
of a Single Asymmetric Center from an Aliphatic Carbonyl Function.
J.
A. C. S., 81, 2789 (1959).
by C. Djerassi and L. E. Geller.
259. Terpenoids XL. Absolute
Configuration of Eremophi1one.
J.
A. C. S., 81, 2914 (1959).
by
L. H. Zalkow, F. X. Markley and C. Djerassi.
260. Steroids
CXXII. 6α-Fluoro-16α-Methylcorticoids.
Synthesis and
Biological Activity.
J.
A. C. S., 81, 3156 (1959).
by
J. A. Edwards, H. J. Ringold and C. Djerassi.
261. Terpenoids XXXVIII.
Interconversion of Eremophilone, Hydroxyeremophilone and Hydroxydihydroeremophilone.
The Relative Stereochemistry of Eremophi1one and its Reduction Products.
J.
A. C. S., 81, 3424 (1959).
by C.
Djerassi, R. Mauli and L. H. Zalkow.
262. Steroids CXVIII. 6-Methyl Derivatives of
17α-Hydroxyprogesterone and of Reichstein's Substance "S".
J.
A. C. S., 81, 3712 (1959).
by
H. J. Ringold, J. Perez Ruelas, E. Batres and C. Djerassi.
263. Steroids CXIX. The
Preparation of Some Vicinal Glycols in the Cortical Hormone Series.
J.
Org. Chem., 24, 909 (1959).
by
J. A. Zderic, H. Carpio and C. Djerassi.
264. Optical Rotatory Dispersion
Studies XXV. Effect of Carbonyl
Groups in Pentacyclic Triterpenes.
J.
A. C. S., 81, 4587 (1959).
by C.
Djerassi, J. Osiecki and W. Closson.
265. Plant Steroids and Related
Substances.
Fourth
International Congress of Biochemistry (Vienna, 1958), Vol. IV, pp. 1 - 19,
Pergamon Press, Ltd. (London, 1959).
by C.
Djerassi.
266. Optical Rotatory Dispersion
Studies XXX. Demonstration of Boat Form in a 3-Keto Steroid.
J.
A. C. S., 81, 4997 (1959).
by C.
Djerassi, N. Finch and R. Mauli.
267. Optical Rotatory Dispersion
Studies XXXI.
Anomalous Dispersion Curves of Dithiocarbamates of α-Amino Acids and
Peptides. Stereochemical Correlations Between α-Hydroxy and α-Amino
Acids.
J.
A. C. S., 81, 5002 (1959).
by
B. Sjšberg, A. Fredga and C. Djerassi.
268. Optical Rotatory Dispersion
Studies XXXII.
Some Recent Applications of Optical Rotatory Dispersion Studies to Organic
Chemical Problems.
Rec.
Chem. Prog., 20, 101 - 145 (1959).
by C. Djerassi.
269. Naturally Occurring Oxygen
Heterocyclics VI. 4-Phenyl-5,7-dihydroxy-6-isovaleryl-8-isopen-tenylcoumarin.
Tetrahedron
Letters, 13, 11 - 15 (1959).
by R. A. Finnegan and C. Djerassi.
270. The Structure of Julocrotine.
Tetrahedron
Letters, 14, 8 - 12 (1959).
by
T. Nakano, C. Djerassi, R. A. Corral and O. O. Orazi.
271. Steroids CXXIII. 19-Nor-6-methylandrostane Derivatives.
J.
A. C. S., 81, 4566 (1959).
by
R. Villotti, C. Djerassi and H. J. Ringold.
272. Optical Rotatory Dispersion
Studies XXVIII. The Absolute Configuration of the Sesquiter-penoid Petasin.
Helv.
Chim. Acta, 42, 1785 (1959).
by A. Aebi and C. Djerassi.
273. Optical Rotatory Dispersion
Studies XXIX.
Absolute Configuration of Phytol.
Proc.
Chem. Soc., 264 (1959).
by
P. CrabbeÕ, C. Djerassi, E. J. Eisenbraun and S. Liu.
274. Terpenoids XXXIX. Iresin (part 5). Complete Structure and
Absolute Configuration.
Tetrahedron,
7, 37 (1959).
by C.
Djerassi and S. Burstein.
275. The Constitutions of
Dammarenolic and Nyctan-thic Acids.
Proc.
Chem. Soc., 306 (1959).
by
A. Arigoni, D. H. R. Barton, R. Bernas-coni, C. Djerassi, J. S. Mills
and R. Wolff.
276. Macrolide Antibiotics
IX. Filipin.
Proc.
Chem. Soc., 316 (1959).
by
B. Berkoz and C. Dierassi.
277. The Absolute Configuration of
Rosenonolactone and Related Diterpenoids.
J.
A. C. S., 81, 5520 (1959).
by
W. B. Whalley, B. Green, D. Arigoni, J. J. Britt and C. Djerassi.
1960
278. Steroids CXXX. Synthesis of
12β-Hydroxypred-niso1one-11β,12β-Acetonide 21-Acetate.
J.
A. C. S., 82, 446 (1960).
by
J. A. Zderic, H. Carpio and C. Djerassi.
279. Optical Rotatory Dispersion
Studies XXVI. α-Ha1oketones
(part 4).
J.
Org. Chem., 25, 1 (1960).
by C. Djerassi, L. E. Geller and E. J.
Eisenbraun.
280. Optical Rotatory Dispersion
Studies XXVII.
Quantitative Studies of an α-Haloketone by the Rotatory Dispersion Method.
J.
Org. Chem., 25, 6 (1960).
by
N. L. Allinger, J. Allinger, L. E. Geller and C. Djerassi.
281. Steroids CXXXIV. Derivatives
of 17α-Ethynyl- testosterone and 17α-Ethynyl-19-nortestosterone.
J.
A. C. S., 82, 1230 (1960).
by
L. Knox, J. A. Zderic, J. Perez Ruelas, C. Djerassi and H. J. Ringold.
282. Terpenoids XLI. The
Constitutions of Dam-mareno1ic and Nyctanthic Acids.
J.
Chem. Soc., 1900 (1960).
by
D. Arigoni, D. H. R. Barton, R. Bernasconi, C. Djerassi, J. S. Mills and
R. E. Wolff.
283. Alkaloid Studies XXIII. Isolation of 4 New Aspidosperma
Alkaloids: Cy1indrocarpine, Refractine, Pyrifo1ine and Pyrifo1idine.
Experientia,
16, 61 (1960).
by
B. Gilbert, L. D. Antonaccio, A. A. P. G. Archer and C. Djerassi.
284. Optical Rotatory Dispersion
Studies XXXIII. α-Ha1oketones
(part 6). Trans-2-bromo-5-t-buty1cyc1ohexanone.
J.
Org. Chem., 25, 917 (1960).
by C.
Djerassi, E. Warawa, R. E. Wolff and E. J. Eisenbraun.
285. Steroids CXXXVI. Synthesis of
a New Class of Potent Cortical Hormones. 6α-Fluoro-and 6α, 9α-Difluoro-16α-methylprednisolone
and Related Steroids.
J.
A. C. S., 82, 2318 (1960).
by
J. A. Edwards, H. J. Ringold and C. Djerassi.
286. Optical Rotatory Dispersion
Studies XXXIV. The Relative
Stabilities of cis and trans Isomers (VIII). Kinetic and Equilibrium
Measurements of Some Substituted Hydrindanones.
J.
Org. Chem., 25, 922 (1960).
by
N. L. Allinger, R. B. Hermann and C. Djerassi.
287. Optical Rotatory Dispersion
Studies XXXV. On the Conformation
of Substituted Cyclopen-tanones. Rotatory Dispersion and Spectral Data of Some
Steroidal α-Halocyclopentanones.
Experientia,
16, 138 (1960).
by J. Fishman and C. Djerassi.
288. Steroids
CXXXVII. Synthesis of a New Class
of Potent Cortical Hormones.
6α,9α-Difluoro-l6α-hydroxyprednisolone and its Acetonide.
J.
A. C. S., 82, 3399 (1960).
by
J. S. Mills, A. Bowers, C. Djerassi and H. J. Ringold.
289. Steroids CXLIV. Synthesis of
Some 6α,17α-Dihaloprogesterones.
J.
Org. Chem., 25, 1056 (1960).
by
J. S. Mills, O. Candiani and C. Djerassi.
290. Terpenoids XLII. The Absolute
Configuration of (-)-Methylisopulegone.
J.
A. C. S., 32, 3476 (1960).
by
E. J. Eisenbraun, F. Burian, Jeanne Osiecki and C. Djerassi.
291. Terpenoids XLIII. On the
Absolute Configuration of Guaiol. Correlation with Nepetalinic Acid.
J.
A. C. S., 82, 3648 (1960).
by
E. J. Eisenbraun, T. George, B. Riniker and C. Djerassi.
292. Terpenoids XLIV. Synthetic
Confirmation of the Structure and Absolute Configuration of Petasin.
J.
A. C. S., 82, 4337 (1960).
by D. Herbst and C. Djerassi.
293. Terpenoids XLV. Further Studies
on the Structure and Absolute Configuration of Cafestol.
J.
A. C. S., 82, 4342 (1960).
by
R. A. Finnegan and C. Djerassi.
294. Optical Rotatory Dispersion
Studies XXXIX. Configuration and
Optical Rotatory Dispersion of Atropisomeric Biaryls.
J.
A. C. S., 82, 4740 (1960).
by
K. Mislow, M. A. W. Glass, R. E. O'Brien, P. Rutkin, D. H. Steinberg and C.
Djerassi.
295. Optical Rotatory Dispersion
Studies XL. The Absolute
Configuration of Biaryls by Rotatory Dispersion Comparison with a Sesquiterpene.
J.
A. C. S., 82, 5247 (1960).
by K. Mislow and C. Djerassi.
296. Macrolide Antibiotics X. The Biosynthesis of Methymycin.
Chem.
& Ind., 1245 (1960).
by
A. J. Birch, E. Pride, R. W. Rickards, P. J. Thompson, J. D. Dutcher, D.
Perlman and C. Djerassi.
297. Optical Rotatory Dispersion
Studies XXXVI. αÂHaloketones (part 7). Demonstration of Boat Form in the
Bromination of 2α-Methylcholestanone.
J.
A. C. S., 82, 5488 (1960).
by C.
Djerassi, N. Finch, R. C. Cookson and C. W. Bird.
298. Steroids CXLV.
2-Methylandrostane Derivatives Demonstration of Boat Form in the Bromination of
2α-Methylandrostan-17β-ol-3-one.
J.
A. C. S., 82, 5494 (1960).
by
R. Mauli, H. J. Ringold and C. Djerassi.
299. Optical Rotatory Dispersion
Studies XXXVII. Steroids CXLVI. On
the Mechanism and Stereo-chemical Course of the Bromination of 3-Keto Steroids
and Their Enol Acetates.
J.
A. C. S, 82, 5693 (1960).
by
R. Villotti, H. J. Ringold and C. Djerassi.
300. Optical Rotatory Dispersion
Studies XLIII. Absolute
Configurational Assignment of α-Substituted Carboxylic Acids by Anomalous
Rotatory Dispersion of Their Acylthiourea Deriva-times.
J.
A. C. S., 82, 5755 (1960).
by C. Djerassi and K. Undheim.
301. Bromination of
2-0xo-Steroids.
Chem.
& Ind., 1385 (1960).
by C. Djerassi and T. Nakano.
302. Optical Rotatory Dispersion
Studies XLIV. Anomalous Rotatory
Dispersion Curves of Olefin Derivatives. Osmate Esters.
J.
A. C. S., 82, 5953 (1960).
by
E. Bunnenberg and C. Djerassi.
303. Alkaloid Studies XXV. The Structures of the Aspidosperma
Alkaloids Cylindrocarpine and Cylindrocarpidine.
Experientia,
16, 532 (1960).
by C.
Djerassi, A. A. P. G. Archer, T. George, B. Gilbert, J. N. Shoolery and L.
F. Johnson.
304. Terpenoids XLVIII. The
Absolute Configuration of Eremophilone and Related Sesquiterpenes.
J.
A. C. S., 82, 6354 (1960).
by
L. H. Zalkow, F. X. Markley and C. Djerassi.
305. Naturally Occurring Oxygen
Heterocyclics VII.
The Structure of Mammein.
J.
Org. Chem., 25, 2164 (1960).
by C.
Djerassi, E. J. Eisenbraun, R. A. Finnegan and B. Gilbert.
306. Naturally Occurring Oxygen
Heterocyclics VIII.
Synthesis of Some Coumarins Related to Mammein.
J.
Org. Chem., 25, 2169 (1960).
by
R. A. Finnegan, B. Gilbert, E. J. EisenÂbraun and C. Djerassi.
307. Naturally Occurring Oxygen
Heterocyclics IX.
Isolation and Characterization of Genipin.
J.
Org. Chem., 25, 2174 (1960).
by C.
Djerassi, J. D. Gray and Fred A. Kincl.
1961
308. Chiapagenin and
Isochiapagenin. Two New Steroidal Sapogenins from Dioscorea Chiapasensis.
J.
Org. Chem., 26, 155 (1961).
by I.
T. Harrison, M. Velasco and C. Djerassi.
309. Terpenoids XLVI. Copalic Acid.
J.
Org. Chem., 26, 167 (1961).
by T. Nakano and C. Djerassi.
310. Optical Rotatory Dispersion
Studies XLI. α-Haloketones
(part 9). Bromination of Optically Active cis-l-Decalone. Demonstration of Conformational
Mobility by Rotatory Dispersion.
J.
A. C. S., 83, 736 (1961).
by C.
Djerassi and J. Staunton.
311. Alkaloid Studies XXVII. The
Structure of Skytanthine.
Chem.
& Ind., 210 (1961).
by C.
Djerassi, J. P. Kutney, M. Shamma, J. N. Shoolery and L. F. Johnson.
312. Optical Rotatory Dispersion
Studies XLV.
Demonstration of Conformational Mobility in an α-Hydroxycyclohexanone.
Chem.
& Ind., 258 (1961).
by C.
Djerassi, R. Records and B. Bach.
313. Alkaloid Studies XXIX. On the
Absolute Configuration of the Diterpene Alkaloids Related to Veatchine and
Atisine.
Tetrahedron
Letters, 119 (1961).
by H. Vorbrueggen and C. Djerassi.
314. Steroids CLVI. Ring D Unsaturated l6-Methylated
Corticosteroids.
J.
Org. Chern., 26, 871 (1961).
by
E. Batres, T. Cardenas, J. A. Edwards, G. Monroy, O. Mancera, C. Djerassi
and H. J. Ringold.
315. Optical Rotatory Dispersion
Studies LII. Determination of the
Absolute Configuration of Jatamansone (Valeranone) by the Axial α-Haloketone
Rule.
Tetrahedron
Letters, 237 (1961).
by C.
Djerassi, T. R. Govindachari, B. R. Pai and K. K. Purushothaman.
316. Naturally Occurring Oxygen
Heterocyclics X. 4-Phenyl-5,7-Dihydroxy-6-Isova1eryl-8-Isopentenylcourmarin.
J.
Org. Chem., 26, 1180 (1961).
by
R. A. Finnegan, M. P. Morris and C. Djerassi.
317. Alkaloid Studies XXIV. Structure of Julo-crotine.
J.
Org. Chem., 26, 1184 (1961).
by
T. Nakano, C. Djerassi, R. A. Corral and O. O. Orazi.
318. Terpenoids XLVII. The
Structure of Genipin.
J.
Org. Chern., 26, 1192 (1961).
by C.
Djerassi, T. Nakano, A. N. James, L. H. Za1kow, E. J. Eisenbraun and J. N.
Shoo1ery.
319. Alkaloid Studies XXVIII. Structure of the Alkaloid Arborinine.
Chem.
& Ind., 464 (1961).
by
S. C. Pakrashi, S. K. Roy, L. F. Johnson, T. George and C. Djerassi.
320. Alkaloid Studies XXVI. The
Constitution of PYrifo1idine.
Experientia,
17, 162 (1961).
by C.
Djerassi, B. Gilbert, J. N. Shoo1ery, L. F. Johnson and K. Biernann.
321. Optical Rotatory Dispersion Studies
XXXVIII.
The Relative Stereochemistry of the Rotenoids.
J.
Chem. Soc., 1448 (1961).
by C.
Djerassi, W. D. Ollis and R. C. Russell.
322. Optical Rotatory Dispersion
Studies XLVIII.
The Nitroso Chrornophore.
J.
A. C. S., 83, 2307 (1961).
by C.
Djerassi, E. Lund, E. Bunnenberg and B. Sjšberg.
323. Steroids and Terpenoids from
Different Iresin Species.
Bull.
Soc. Chim. Be1g., 70, 168 (1961).
by
P. CrabbeÕ, E. A. Azpeitia and C. Djerassi.
324. Optical Rotatory Dispersion
Studies XLII. Disulfides and
Diselenides.
Acta
Chem. Scand., 15, 417 (1961).
by C.
Djerassi, A. Fredga and B. Sjšberg.
325. Steroidal Sapogenins XL.
Reaction of 12-oxo-sapogenins with Selenium Dioxide: Synthesis of 3β~-Hydroxypregna-5,9(11),16-triene-20-one
from Botogenin.
J.
Chem. Soc., 1859 (1961).
by
A. Bowers, E. Denot, M. B. Sanchez, F. Neumann and C. Djerassi.
326. Optical Rotatory Dispersion
Studies LIV.
Optical Rotatory Dispersion.
Endeavour,
20, 138 (1961).
by C. Djerassi.
327. Optical Rotatory Dispersion
Studies LIII. A Generalization of the Octant Rule.
J.
A. C. S., 83, 2771 (1961).
by
K. Mislow, M. A. W. Glass, A. Moscowitz and C. Djerassi.
328. Optical Rotatory Dispersion
Studies XLVII.
Application of Anomalous Optical Rotatory Dispersion to Organic Chemical
Problems.
Tetrahedron,
13, 13 (1961).
by C. Djerassi.
329. Alkaloid Studies XXXI. A
Direct Correlation of the Diterpene Alkaloids and Hydrocarbons of the
Phyllocladene Group. Interconversion of Garryfoline and Steviol.
J.
A. C. S., 83, 3163 (1961).
by
E. Mosettig; P. Quitt, U. Beg1inger, J. A. Waters, H. Vorbrueggen and C.
Djerassi.
330. Optical Rotatory Dispersion
Studies LV. Application of Optical
Rotatory Dispersion Studies to Problems in Natural Products Chemistry.
Pure
and App1. Chem., 2, 475 (1961).
by
C. Djerassi.
331. Optical Rotatory Dispersion
Studies LVII. The Octant Rule and
the t-Butyl Group. Evidence
for a Twist Form in cis-t-Butyl-5-methylcyclo- hexanone.
J.
A. C. S., 83, 3334 (1961).
by C.
Djerassi; E. J. Warawa, J. M. Berdahl and E. J. Eisenbraun.
332. Optical Rotatory Dispersion
Studies LX. Optical Rotatory
Dispersion.
Science,
134, 649 (1961).
by C. Djerassi.
333. Terpenoids L.
Cycloart-23-ene-3β,25-diol: A New Cyclopropane-containing Triterpene from
Spanish Moss.
Chem.
& Ind., 1311 (1961).
by
R. McCrindle and C. Djerassi.
334. Optical Rotatory Dispersion
Studies LVIII.
The Complete Absolute Configuration of Steviol, Kaurene and the Diterpene Alkaloids
of the Garryfoline and Atisine Groups.
J.
A. C. S., 83, 3720 (1961).
by C.
Djerassi, P. Quitt, E. Mosettig, R. C. Cambie, P. S. Rutledge and L. H.
Briggs.
335. Optical Rotatory Dispersion
Studies XLIX. Anomalous Rotatory
Dispersion of Optically Active Terpene Trithiones.
Chem.
Ber., 94, 2305 (1961).
by C.
Djerassi and A. LŸttringhaus.
336. Optical Rotatory
Dispersion Studies L. The
Conformers of trans-2-Chloro-5-methylcyclo-hexanone.
J.
Org. Chem., 26, 3521 (1961).
by
J. Allinger, N. L. Allinger, L. E. Geller and C. Djerassi.
337. Macrolide Antibiotics
XI. The Structure of the Macrolide
Antibiotic Filipin.
Tetrahedron
Letters, 383 (1961).
by C.
Djerassi, M. Ishikawa, H. Budzikiewicz, J. N. Shoolery and L. F. Johnson.
338. Optical Rotatory Dispersion
Studies XLVI.
Stereochemical Assignments through Anomalous Rotatory Dispersion Curves of
α-Aminoacid Derivatives. 3-Phenyl-2-thiohydantoins and
α-thionocarbethoxy Amino Acids.
Acta
Chem. Scand., 15, 903 (1961).
by C.
Djerassi, K. Undheim, R. C. Sheppard, W. G. Terry and B. Sjšberg.
339. Structure and the Optical
Rotatory Dispersion of Saturated Ketones.
J.
A. C. S., 83, 4013 (1961).
by
W. Moffitt, R. B. Woodward, A. Moscowitz, W. Klyne and C. Djerassi.
340. Terpenoids XLIX. Preparation of Optically Active
Polyalkylcyclohexanones from (+)-Pu1egone, (-)-Menthone and (-)-Carvone.
J.
A. C. S., 83, 4433 (1961).
by C.
Djerassi; J. Osiecki and E. J. Eisenbraun.
341. Optical Rotatory Dispersion
Studies LIX. The Octant Rule and
Deuterium. Synthesis of 3-Deuteriocyclopentanone.
J.
A. C. S., 83, 4609 (1961).
by C. Djerassi and B. Tursch.
342. Optical Rotatory Dispersion
Studies LI. Absolute
Configurational Assignments of α-Amino Acids and Peptides through
Anomalous Rotatory Dispersion of N-phtha1oyl Derivatives.
J.
Org. Chem., 26, 4509 (1961).
by C.
Djerassi, E. Lund, E. Bunnenberg and J. C. Sheehan.
343. Optical Rotatory Dispersion
Studies LVI. Thiones.
J.
Org. Chem., 26, 4675 (1961).
by C. Djerassi and D. Herbst.
344. Optical Rotatory Dispersion
Studies LXI. Optical Rotatory
Dispersion and Spectral Data of Some Steroidal Ring D Ketol Acetates of the 14β
Series.
Experientia,
17, 565 (1961).
by C.
Djerassi, J. Fishman and T. Nambara.
345. The Structure of the Cactus
Sterol Peniocerol.
Proc.
Chem. Soc., 450 (1961).
by C.
Djerassi, R. D. H. Murray and R. Villotti.
346. Alkaloid Studies XXX. Isolation and Constitution of Three New
Aspidosperma Alkaloids: Cylindrocarpine, Cylindrocarpidine and
Pyrifolidine.
Tetrahedron,
16, 212 (1961).
by C.
Djerassi, A. A. P. G. Archer, T. George, B. Gilbert and L. D. Antonaccio.
347. Optical Rotatory
Dispersion Studies. LXII. Configurational Assignments Among the Aporphine
Alkaloids.
Experientia, 18,
53 (1962)
by C. Djerassi,
K. Mislow and M. Shamma.
348. Optical Rotatory
Dispersion Studies. LXIII. Halogen Atoms and the Octant Rule.
Chem. Ind., 177
(1962)
by C. S. Barnes and C. Djerassi.
349. Steroids. CLXXVII. New
Approaches to C-11 Oxygenated 19-Norpregnones.
J. Org. Chem.,
27, 361 (1962)
by A. Bowers, J.
S. Mills, C. CasasCampillo and C. Djerassi.
350. Alkaloid Studies.
XXXII. Studies on Skytanthus Acutus. The Structure of the Monoterpenoid
Alkaloid Skytanthine.
Tetrahedron, 18,
183 (1962)
by C. Djerassi,
J. P. Kutney and M. Shamma.
351. Mass Spectrometry in
Structural and Stereochemical Problems. IV. Vindolinine.
Proc. Natl.
Acad. Sci. U.S., 48, 113 (1962)
by C. Djerassi,
S. E. Flores, H. Budzikiewicz,
J. M. Wilson, L. J. Durham, J. LeMen,
M.-M. Janot, M.
Plat, M. Gorman and N. Neuss.
352. Optical Rotatory
Dispersion. LXIX. The Absolute Configuration of the 2-Methylcyclohexanols and
Some Observations on a Twist Form in the Conformational Equilibrium of
2-Methylcyclohexanone.
J.A.C.S., 84,
874 (1962)
by C. Beard, C.
Djerassi, T. Elliott and R. C. C. Tao.
353. Optical Rotatory
Dispersion Studies. LXXII.
Inherently Dissymmetric Chromophores. Optical Rotatory Dispersion of
α,β-unsaturated Ketones and Conformational Analysis of
Cyclohexenones.
J.A.C.S., 84,
870 (1962)
by C. Djerassi,
R. Records, E. Bunnenberg,
K. Mislow and A.
Moscowitz.
354. Studies in Organic
Sulfur Compounds. XI. On the
Reaction of Enamines with Hydrogen Sulfide.
J. Org. Chem.,
27, 1041 (1962)
by C. Djerassi
and B. Tursch.
355. Studies in Organic
Sulfur Compounds. XII.
Preparation of Inaccessible Enamine Amides by Desulfurization of Thiazolidines
and Thiazolidinones.
J. Org. Chem.,
27, 1112 (1962)
by C. Djerassi,
N. Crossley and M. A. Kielczewski.
356. Mass Spectrometry in
Structural and Stereochemical Problems. II. Pyrifoline and Refractidine.
Tetrahedron
Letters, 59 (1962)
by B. Gilbert, J. M. Ferreira, R. J. Oweller,
C. E. Swanholm,
H. Budzikiewicz, L. J. Durham and C. Djerassi.
357. Mass Spectrometry in
Structural and Stereochemical Problems. III. Spegazzinine and Spegazzinidine.
Experientia, 18,
113 (1962)
by C. Djerassi, H. W. Brewer, H. Budzikiewicz, O. O. Orazi and R. A. Corral.
358. Optical Rotatory
Dispersion Studies. LXIV. Detection of Conformational Changes Caused by
Equatorial Methyl Groups.
J.A.C.S., 84,
1249 (1962)
by C. Djerassi,
E. Lund and A. A. Akhrem.
359. Steroids. CXCI. Some
Reactions of a 6-Methyl-Δ5-3β- Hydroxy Steroid System.
J. Org. Chem.,
27, 1139 (1962)
by J. Iriarte,
J. N. Shoolery and C. Djerassi.
360. Optical Rotatory
Dispersion Studies. LXV. Differentiation of Epimeric Steroidal Alcohols by
Anomalous Rotatory Dispersion. Some Observations on the Nitrite Chromophore.
J. Org. Chem.,
27, 1173 (1962)
by C. Djerassi,
I. T. Harrison, O. Zagneetko and A. L. Nussbaum.
361. Optical Rotatory
Dispersion Studies. LXVIII. Configuration, Conformation and Rotatory Dispersion
of Optically Active Biaryls.
J.A.C.S., 84,
1455 (1962)
by K. Mislow, M.
A. W. Glass, R. E. O'Brien, P. Rutkin, D. M. Steinberg, J. Weiss and C.
Djerassi.
362. Mass Spectrometry in
Structural and Stereochemical Problems. I. Steroid Ketones.
J.A.C.S., 84,
1430 (1962)
by H. Budzikiewicz and C. Djerassi.
363. Mass Spectrometry in
Structural and Stereochemical Problems. V. Refractine and Aspidefractine.
J.A.C.S., 84,
1499 (1962)
by C. Djerassi, T. George, N. Finch, H. F. Lodish, H. Budzikiewicz and B.
Gilbert.
364. Steroids. CLXXII.
Factors Controlling the Direction of Enol Acetylation of 3-Oxo-steroids.
J. Chem. Sac.,
1323 (1962)
by B. Berkoz, E. P. Chavez and C. Djerassi.
365. Naturally Occurring
Oxygen Heterocyclics. XI. Veraguensin.
J. Chem. Soc.,
1459 (1962)
by N. S. Crossley and C. Djerassi.
366. Recent Applications of
Optical Rotatory Dispersion to Organic Chemistry.
Chemistry
(Taiwan), No. 4, 249-254 (1961)
by C. Djerassi.
367. Mass Spectrometry in
Structural and Stereochemical Problems. VII. Vincadifformine (Alcaloides des
Pervenches).
Tetrahedron
Letters, 235 (1962)
by C. Djerassi, H. Budzikiewicz, J. M. Wilson, J. Gosset, J. LeMen and M.-M.
Janot.
368. Optical Rotatory
Dispersion Studies. LXVI.
Optical Rotatory Dispersion Associated with Dissymmetric Non-Conjugated
Chromophores. An Extension of the Octant Rule.
J.A.C.S., 84,
1945 (1962)
by A. Moscowitz, K. Mislow, M. A. W. Glass and C.
Djerassi.
369. Optical Rotatory
Dispersion Studies. LXXI. Halogen Atoms and the Octant Rule. The Conformations
of Some 5α–Halocholestan-3–ones.
J.A.C.S., 84,
1962 (1962)
by C. S. Barnes and C. Djerassi.
370. Mass Spectrometry in
Structural and Stereochemical Problems. VIII. Unsaturated Pectacyclic
Triterpenoids.
Tetrahedron
Letters, 263 (1962)
by C. Djerassi, H. Budzikiewicz and J. M. Wilson.
371. Mass Spectrometry in
Structural and Stereochemical Problems. IX. Tabersonine.
Tetrahedron
Letters. 271 (1962)
by M. Plat, J. LeMen, M.–M. Janot, J. M. Wilson, H. Budzikiewicz, L. J.
Durham, Y. Nakagawa, and C. Djerassi.
372. A New Route to
1–Oxygenated Steroids.
J. Org. Chem., 27,
2205 (1962)
by C. Djerassi, D. H. Williams and B. Berkoz.
373. Alkaloid Studies.
XXXIII. Mass Spectrometry in Structural and Stereochemical Problems. VI.
Polyneuridine, A New Alkaloid from Aspidosperma Polynauron and Some
Observations on Mass Spectra of Indole Alkaloids.
J.A.C.S., 84,
2161 (1962)
by L. D. Antonaccio, N. A. Pereira, B. Gilbert, H. Vorbrueggen, H.
Budzikiewicz, J. M. Wilson, L. J. Durham and C. Djerassi.
374. Optical Rotatory
Dispersion Studies. LXXV. Optical Rotatory Dispersion and the Twist
Conformation of Cyclohexanones.
Proc. Natl.
Acad. Sci. U.S., 48, 1093 (1962)
by C. Djerassi and W. Klyne.
375. Alkaloid Studies.
XXIIV. Structure of the Alkaloid Casimiroedine.
Tetrahedron
Letters, 357 (1962)
by S. Raman, J. Reddy, W. N. Lipscomb, A. L. Kapoor and C. Djerassi.
376. Optical Rotatory
Dispersion Studies. LXVII.
Stereochemistry of the Isomeric Isopulegones. Preparation of
(+)–Isopulegone by Thermal Isomerization of (+)–Pulegone.
Ber., 95, 1400
(1962)
by G. Ohloff, J.
Osiecki and C. Djerassi.
377. Mass Spectrometry in
Structural and Stereochemical Problems. X. Structure of Mossambine.
Bull. Soc. Chim.
France, 1088 (1962)
by X. Monseur, R. Goutarel, J. LeMen, J. M. Wilson, H. Budzikiewicz and C.
Djerassi.
378. Mass Spectrometry in
Structural and Stereochemical Problems. XII. Structure of Vincamine and
1l–Methoxyvincamine.
Bull. Soc. Chim.
France, 1082 (1962)
by M. Plat, D. D. Mann, J. LeMen, M.–M. Janot, H. Budzikiewicz, J. M.
Wilson, L. J. Durham and C. Djerassi.
379. Studies in Organic
Sulphur Compounds. XIII. Lithium Aluminum Hydride Reduction of Episulphides to
Olefins.
Chem. Ind., 1236
(1962)
by D. A. Lightner and C. Djerassi.
380. Optical Rotatory
Dispersion Studies. LXXVI. Inherently Dissymmetric Chromophores and Circular
Dichroism.
J.A.C.S., 84,
2823 (1962)
By E. Bunnerberg, C. Djerassi, K. Mislow and A.
Moscowitz.
381. Alkaloid Studies. XXXV.
The Structures of Stemmadenine and Condylocarpibe.
Tetrahedron
Letters, 409 (1962)
by A. Sandoval, F. Walls, J. N. Shoolery, J. M.
Wilson, H. Budzikiewicz and C. Djerassi.
382. Alkaloid Studies.
XXXVI. The Complete Absolute Configuration of the Diterpene Alkaloids of the
Garrya and Atisine Groups and their Direct Correlation with the
Phyllocladene–type Diterpenes.
J.A.C.S., 84,
2990 (1962)
by H. Vorbrueggen and Carl Djerassi.
383. Alkaloid Studies.
XXXVIII. Pilocereine–A Trimeric Cactus Alkaloid.
J.A.C.S., 84,
3210 (1962)
by C. Djerassi, H. W. Brewer, C. Clarke and L. J. Durham.
384. Optical Rotatory
Dispersion Studies. LXX. Anomalous Rotatory Dispersion of Xanthates:
Application to Stereochemical Studies of Alcohols.
Acta Chem.
Scand., 16, 1079 (1962)
by B. Sjoberg, D. J. Cram, L. Wolf and C. Djerassi.
385. Optical Rotatory
Dispersion Studies. LXXIII. Anomalous Rotatory Dispersion Curves Associated
with Acylthioureas. Application to Stereochemical Studies of α—Substituted
Carboxylic Acids.
Acta Chem.
Scand., 16, 1147 (1962)
by C. Djerassi, K. Undheim and A.—M. Weidler.
386. Mass Spectrometry in
Structural and Stereochemical Problems. XIII. Echitamidine.
Tetrahedron
Letters, 653 (1962)
by C. Djerassi, Y. Nakagawa, H. Budzikiewicz, J. M. Wilson, J. LeMen, J.
Poisson and M.—M. Janot.
387. Alkaloid Studies.
XXXVII. The Structure of Aspidofiline.
Experientia, 18,
397 (1962)
by C. Djerassi, R. J. Owellen, J. M. Ferreira and L. D. Antonaccio.
388. Mass Spectrometry in
Structural and Stereochemical Problems. XI. The Structures of the Aspidosperma
Alkaloids Spegazzinine and Spegazzinidine.
J.A.C.S., 84,
3480 (1962)
by C. Djerassi,
H. W. Brewer, H. Budzikiewicz, O. O. Orazi and R. A. Corral.
389. Terpenoids. LI.
Isolation of Some New Cyclopropane-containing Triterpenes from Spanish Moss
(Tillandsia Usneoides).
J. Chem. Soc.,
4034 (1962)
by C. Djerassi
and R. McCrindle.
390. Alkaloid Studies. XL.
The Alkaloids of Aspidosperma Limae Woodson: Aspidolimidine, Aspidolimine, Demethoxypalosine
and Aspidoccrpine
Chem. Ind., 1949
(1962)
by B. Gilbert, J. A. Brissolese, J. M. Wilson, H. Budzikiewicz, L. J. Durham
and C. Djerassi.
391. Alkaloid Studies. XLI.
The Constitution of Lochneridine.
Chem. Ind., 1986
(1962)
by Y. Nakagawa, J. M. Wilson, H. Budzikiewicz and C. Djerassi.
392. Optical Rotatory
Dispersion Studies. LXXIV. Application of the Octant Rule to Some Structural
and Stereochemical Problems.
J. Chem. Soc.,
4929 (1962)
by C. Djerassi and W. Klyne.
393. Mass Spectrometry in Structural
and Stereochemical Problems. XV. Steroidal Sapogenins.
Monatsh., 93,
1033 (1962)
by H. Budzikiewicz, J. M. Wilson and C. Djerassi.
394. Mass Spectrometry in
Structural and Stereochemical Problems. XVI. The Structure of the Aspidosperma
Alkaloid Aspidcalbine.
Tetrahedron
Letters, 1001 (1962)
by C. Djerassi, L. D. Antonaccio, H. Budzikiewicz, J. M. Wilson and E. Gilbert.
395. Mass Spectrometry in
Structural and Stereochemical Problems. XIV. Steroids with One or Two Aromatic
Rings.
J.A.C.S., 84,
4544 (1962)
by C. Djerassi, J. M. Wilson, H. Budzikiewicz and J. W. Chamberlin.
396. Optical Rotatory
Dispersion Studies. LXXVIII. Comparative Studies of Circular Dichroism and
Rotatory Dispersion Curves. Some
Observations on Sulfur—Containing Chromophores.
J.A.C.S., 84,
4552 (1962)
by C. Djerassi, H. Wolf and E. Bunnenberg.
397. Mass Spectrometry in
Structural and Stereochemical Problems. XVII. The Structures of Four Alkaloids
of Vinca Minor. (—)—Vincadifformine, Minovincine, Minovincinine and
16—Methoxyminovincine.
Bull. Soc. Chim.
France, 2237 (1962)
by, M. Plat, J. LeMen, M.—M. Janot, H. Budzikiewicz, J. M. Wilson, L. J.
Durham and C. Djerassi.
398. Alkaloid Studies.
XXXIX. The Occurrence of Dihydrocorynanthecl and Aricine in Aspidosperma
Marcgravianum Woodson.
J. Org. Chem.,
27, 4702 (1962)
by B. Gilbert, L. D. Antonaccio and C. Djerassi.
1963
399. Mass Spectrometry in
Structural and Stereochemical Problems. XXIII. Some Observations on the Mass
Spectral Fragmentation of Δ1-and Δ4-3-Keto Steroids.
Steroids, 1, 1
(1963)
by R. H. Shapiro, J.M. Wilson and Carl Djerassi.
400. Optical Rotatory
Dispersion Studies. LXXIX.
The Location of the n-¹* Absorption Band of α-Iodoketones and Its Relation
to Circular Dichroism and Optical Rotatory Dispersion.
J.A.C.S., 85. 324
(1963)
By C. Djerassi, H. Wolf and E. Bunnenberg.
401. Optical Rotatory
Dispersion Studies. LXXVII. Application of the Octant Rule to Some Structural
and Stereochemical Problems: Part 2.
J. Chem. Soc.,
2390 (1963)
By C. Djerassi and W. Klyne.
402. Steroids. CCXXVII1. The
Synthesis of Equilin.
Steroids, 1,
233 (1963)
By J. A. Zderic, H. Carpio, A. Bowers and C. Djerassi.
403. The Structure of the
Cactus Sterol Macdougalli (14α
-Methyl-Δ8-Cholestene-3β,6α-Diol) —A Novel Link in Sterol
Biogenesis.
J.A.C.S., 85,
835 (1963)
By C. Djerassi, J.C. Knight and D. I. Wilkinson.
404. Mass Spectrometry in
Structural and Stereochemical Problems. XVIII. Fragmentation and Hydrogen
Transfer Reactions After Electron Impact on α-Decalones. Synthesis of
Poly-deuterated α-Decalones.
J.A.C.S., 85,
941 (1963)
By E. Lund, H, Budzikiewicz, J. M. Wilson and C. Djerassi.
405. Absolute Configuration
and Optical Rotatory Dispersion of 3-Methylcycloheptanone and
4-Methylcycloheptanone.
J.A.C.S., 85,
949 (1963)
By C. Djerassi,
B. F. Burrows, C. G. Overberger, T. Takekoshi, C. D. Gutsche and C. T. Chang
406. Mass Spectrometry in
Structural and Stereo-chemical Problems. XXII. Determination of Mass Spectra of
Non-Volatile Substances.
Experientia, 19,
211 (1963)
J.F. Lynch, J.M. Wilson, H. Budzikiewicz and C. Djerassi
407. Optical Rotatory
Dispersion Studies. LXXX. Inherently Dissymmetric Chromophores and Circular
Dichroism. II.
J.A.C.S., 85,
1342 (1963)
By K. Mislow, E. Bunnenberg, R. Records, K. Wellman and C. Djerassi
408. Mass Spectrometry in
Structural and Stereo-chemical Problems. XX. Carapanaubine, a New Alkaloid from
Aspidosperma Carapanauba and Some Observations on Mass Spectra of Oxindole
Alkaloids.
J.A.C.S., 85,
1523 (1963)
By B. Gilbert, J.A. Brissolese, N. Finch, W.I. Taylor, H. Budzikiewicz, J.M.
Wilson and C. Djerassi
409. Mass Spectrometry in
Structural and Stereo-chemical Problems XXI. Fragmentation and Hydrogen
Transfer Reactions After Electron Impact on β-Decalones.
J.A.C.S., 85,
1528 (1963)
By E. Lund, H. Budzikiewicz, J.M. Wilson and C. Djerassi
410. Mass Spectrometry in
Structural and Stereo-chemical Problems. XXVI. The Mass Spectra of Alkaloids of
the Refractine-Pleiocarpine Class and the Structure of Aspidofractine, a Minor
Alkaloid from Aspidosperma refractum Mart.
Helv. Chim.
Acta, 46, 742 (1963)
By C. Djerassi, H. Budzikiewicz, R.J. Owellen, J.M. Wilson, W.G. Kump, D.J.
LeCourq, A.R. Battersby and H. Schmid
411. Mass Spectrometry in Structural
and Stereo-chemical Problems. XXVIII. Structure of Pseudo Akuammigine and of
Picraline.
Bull. Soc. Chim.
France, 646 (1963)
By L. Olivier, J. LŽvy, J. LeMen, M.-M. Janot, C. Djerassi, H. Budzikiewicz,
J.M. Wilson and L.J. Durham
412. Bromination of
2-Oxosteroids.
Chem. Pharm.
Bull. (Tokyo), 11, 465 (1963)
By T. Nakano, M. Hasegawa and C. Djerassi
413. Optical Rotatory
Dispersion Studies. LXXXII. Determination of the Stereochemistry and Conformation
of the Four Isomeric Cyanodihydro-carvones by Optical Rotatory Dispersion
and Dipole Moment Measurements.
J. Org. Chem.,
28, 1632 (1963)
By C. Djerassi, R.A. Schneider, H. Vorbrueggen and N. L. Allinger
414. Optical Rotatory
Dispersion Studies. LXXXIV.
Studies of Conformational Mobility by Low‑
Temperature Circular Dichroism Measurements.
J.A.C.S., 85,
1870 (1963)
By K.M. Wellman, E. Bunnenberg and C. Djerassi
415. Optical Rotatory
Dispersion Studies. LXXXI.
Conformational Distortion in 2-Methylcyclo-hexanones.
Tetrahedron, 19,
919 (1963)
By C. Beard, C. Djerassi, J. Sicher, F. Sĭpoš and M. Tichў
416. Terpenoids. LII.
Constitution and Absolute Configuration of Eremophilenolide.
Tetrahedron, 19,
1101 (1963)
By L. Novotny, J. Jizba, V. Herout, F. Šorm, L.H. zalkow, S. Hu and C.
Djerassi
417. Mass Spectrometry in
Structural and Stereo-chemical Problems. XXV. Mass Spectrometric Investigations
in the Steroid, Terpenoid and Alkaloid Fields.
Pure and Appl.
Chem., 6, 575 (1963)
By C. Djerassi
418. Mass Spectrometry in
Structural and Stereo-chemical Problems. XXIV. A Study of the Hydrogen Transfer
Reactions Accompanying Fragmentation of 11-Keto Steroids. Synthesis of
Deuterated Androstan-11-ones.
J.A.C.S., 85,
2091 (1963)
By D.H. Williams, J.M. Wilson, H. Budzikiewicz and C. Djerassi
419. Mass Spectrometry in
Structural and Stereo‑chemical Problems. XXVII. Mass Spectral
Fragmentation Processes and Hydrogen Transfer Reactions of Amides and Amines.
J.A.C.S., 85,
2470 (1963)
By Z. Pelah, M.A. Kielczewski, J.M. Wilson, M. Ohashi, H. Budzikiewicz and C.
Djerassi
420. Studies in Organic
Sulfur Compounds XIV. Formation of Olefins on Desulfurization of Ethylene
Thioketals by Raney Nickel.
J. Chem. Soc.,
4046 (1963)
By C. Djerassi and D.H. Williams
421. The Introduction of
Deuterium into the C-19 Angular Methyl Group.
Steroids, 2,
125 (1963)
By C. Djerassi and M.A. Kielczewski
422. Mass Spectrometry in
Structural and Stereo-chemical Problems. XIX. Akuammicine and Related
Alkaloids.
Tetrahedron, 19,
1265 (1963)
By H. Budzikiewicz, J.M. Wilson, C. Djerassi, J. LŽvy, J. LeMen and M.-M. Janot
423. Terpenoids LIII.
Demonstration of Ring Conformational Changes in Triterpenes of the β-Amyrin
Class Isolated from Stryphnodendron coriaceum.
J. Org. Chem., 28,
2390 (1963)
By B. Tursch, E. Tursch, I.T. Harrison, G. da Silva, H.J. Monteiro, B. Gilbert,
W.B. Mors and C. Djerassi
424. Optical Rotatory
Dispersion Studies. LXXXV.
Circular Dichroism and Optical Rotatory Disper‑sion of the Nitrite and
Nitro Chromophores.
J.A.C.S., 85,
2835 (1963)
By C. Djerassi, H. Wolf and E. Bunnenberg
425. Mass Spectrometry in
Structural and Stereochemical Problems. XXXI. Aporphines and Related Alkaloids.
J.A.C.S., 85,
2807 (1963)
By M. Ohashi, J.M. Wilson, H. Budzikiewicz, M. Shamma, W.A. Slusarchyk and C.
Djerassi
426. Unusual Chemical Shifts
in the Nuclear Magnetic Resonance Spectra of 7- and 11- Keto Steroids.
J.A.C.S., 85,
2810 (1963)
By D.H. Williams, N.S. Bhacca and C. Djerassi
427. Alkaloid Studies XLIV.
The Structure of the Aspidosperma Alkaloid Compactinervine.
Experientia, 19,
467 (1963)
By C. Djerassi, Y. Nakagawa, J.M. Wilson, H. Budzikiewicz, B. Gilbert and L.D.
Antonaccio
428. Mass Spectrometry in
Structural and Stereo-chemical Problems. XXXVIII. Contribution to the Structure
of Voacamine and Voacorine. Observations on the Mass Spectra of Vobasine and
its Derivatives.
Bull. Soc. Chim.
France, 1899 (1963)
By H. Budzikiewicz, C. Djerassi, F. Puisieux, F. Percheron and J. Poisson.
429. Optical Rotatory
Dispersion Studies. LXXXIII. Optical Rotatory Dispersion and Circular Dichroism
of Episulfides and Trithiocarbonates.
Tetrahedron, 19,
1547 (1963)
By C. Djerassi, H. Wolf, D.A. Lightner, E. Bunnenberg, K. Takeda, T. Komeno and
K. Kuriyama
430. Alkaloid Studies XLII.
The Structures of Dichotamine, 1-Acetyl-aspidoalbidine and
1-Acetyl-17-Hydroxy-aspidoalbidine: Three New Alkaloids from Vallesia
dichotoma.
Tetrahedron
Letters, 1731 (1963)
By K.S. Brown, H. Budzikiewicz and C. Djerassi
431. Terpenoids LIV.
Arborinol, a New Triterpene Type.
Liebigs Ann., 668,
57 (1963)
By H. VorbrŸggen, S.C. Pakrashi and C. Djerassi
432. Optical Rotatory
Dispersion Studies. LXXXVII. Recording and Nomenclature of Circular Dichroism.
Proc. Chem.
Soc., 299 (1963)
By C. Djerassi and E. Bunnenberg
433. Optical Rotatory
Dispersion Studies. XCIII. Conformer Populations and Thermodynamic Data from
Temperature-Dependent Circular Dichroism Measurements.
J.A.C.S., 85,
3515 (1963)
By A. Moscowitz, K. Wellman and C. Djerassi
434. Mass Spectrometry in
Structural and Stereo-chemical Problems. XXXII. Pentacyclic Tri-terpenes.
J.A.C.S., 85,
3688 (1963)
By H. Budzikiewicz, J.M. Wilson and C. Djerassi
435. Optical Rotatory
Dispersion Studies. XCIV.
Some Effects of Solvation Upon Optically Active Molecules.
Proc. Natl.
Acad. Sci., U.S., 50, 799 (1963)
By A. Moscowitz, K.M. Wellman and C. Djerassi
436. Alkaloid Studies XLIII.
The Alkaloids of Aspidosperma discolor.
Experientia, 19,
585 (1963)
By J.M.Ferreira, B.Gilbert, R.J.Owellen and C.Djerassi
437. Mass Spectrometry in
Structural and Stereo-chemical Problems XLVI. The Mass Spectrometric
Fragmentation of Steroidal Ethylene Ketals and Ethylene Thioketals.
Steroids, 2,
475 (1963)
By G. v.Mutzenbecher, Z.Pelah, D.H. Williams, H.Budzikiewicz and C.Djerassi
438. Studies in Organic
Sulfur Compounds XV. A Novel Base-Catalyzed Rearrangement of a Steroid β-Ketoxanthate.
Steroids, 2,
583 (1963)
By D.A. Lightner and C.Djerassi
439. Mass Spectrometry in
Structural and Stereo-chemical Problems XXIX. Mass Spectra of Isothiocyanates.
Acta
Chem.Scand., 17, 2143 (1963)
By A. Kjaer, M.Ohashi, J.M.Wilson and C.Djerassi
440. Mass Spectrometry in
Structural and Stereo-chemical Problems XXXIII. Colchicine Alkaloids.
Tetrahedron, 19,
2225 (1963)
By J.M.Wilson, M.Ohashi, H.Budzikiewicz, F.Šantavў and C.Djerassi
441. Mass Spectrometry in
Structural and Stereo-chemical Problems XXXIV. Aromatic Methyl and Ethyl
Ethers.
Tetrahedron, 19,
2233 (1963)
By Z.Pelah, J.M.Wilson, M.Ohashi, H. Budzikiewicz and C.Djerassi
442. Mass Spectrometry in
Structural and Stereo-chemical Problems XXXVI. The Mass Spectra of
Stereoisomers of the Sarpagine-Akuammidine Group.
Tetrahedron, 19,
2241 (1963)
By M.Ohashi, H.Budzikiewicz, J.M.Wilson, C.Djerassi, J.LŽvy, J.Gosset, J. LeMen
and M.-M. Janot
443. Mass Spectrometry in
Structural and Stereo-chemical Problems XXXVII. Tropone and Tropolone Derivatives.
Tetrahedron, 19,
2247 (1963)
By J.M.Wilson, M.Ohashi, H.Budzikiewicz, C.Djerassi, S.It™ and T.Nozoe
444. Synthesis of
15-Oxo-Steroids.
Proc.Chem.Soc.,
377 (1963)
By C.Djerassi and G. v.Mutzenbecher
445. Optical Rotatory
Dispersion Studies LXXXIX.Optical Rotatory Dispersion Studies LXXXIX.The Octant
Rule and the t-Butyl Group. Synthesis of Steroidal t-Butyl Ketones.
J. Am. Chem.
Soc., 86, 78 (1964)
By C. Djerassi, P. A. Hart and E. J. Warawa.
446. Optical Rotatory
Dispersion Studies XC.
The Octant Rule and the Isopropyl Group. Synthesis of Steroidal Isoprapyl
Ketones.
J. Am. Chem..
Soc., 86, 85 (1964)
By C. Djerassi, P. A. Hart and C. Beard.
447. Mass Spectrometry in
Structural and Stereo-chemical Problems XXXV. Mass Spectrometric Fragmentation
and Hydrogen Transfer Reactions in 16-Keto Steroids. A Novel Synthesis of Side Chain Labeled Cholestanes.
J. Am. Chem.
Soc., 86, 269 (1964)
By C. Beard, J. M. Wilson, H. Budzikiewicz and C. Djerassi.
448. Mass Spectrometry in
Structural and Stereo-chemical Problems XLI. Isotope Effect in Hydrogen Rearrangement Processes: The Mass Spectra of Methyl Butyrate and
Its γ-Mono-, Di-, and Trideuterio Analogs.
J. Am. Chem..
Soc., 86, 284 (1964)
By D. H. Williams, H. Budzikiewicz and C. Djerassi.
449. Optical Rotatory
Dispersion Studies LXXXVIII.Optical Rotatory Dispersion Studies
LXXXVIII.Comparative Optical Rotatory Dispersion and Circular Dichroism
Measurements of N-phthaloyl Amines and α-Amino Acids.
Ber., 97,
533 (1964)
By H. Wolf, E. Bunnenberg and C. Djerassi.
450. Optical Rotatory
Dispersion Studies XCI.
The Use of Low-Temperature Circular Dichroism Measurements for ÒFingerprintingÓ
of Steroidal Ketones.
J. Am. Chem.
Soc., 86, 492 (1964)
By K. M. Wellman, R. Records, E. Bunnenberg and C. Djerassi.
451. Optical Rotatory
Dispersion Studies XCII.
Some Observations on the Conformation of cis-10-Methyl-2-decalones.
J. Am. Chem.
Soc., 86, 465 (1964)
By C. Djerassi, J. Burakevich, J. W. Chamberlin, D. Elad, T. Toda and G. Stork.
452. Mass Spectrometry in
Structural and Stereo-chemical Problems XL. The Fragmentation Behavior of
Cyclohexanol and Its Deuteriated Analogs.
Monatsh., 95,
158 (1964)
By H. Budzikiewicz, Z. Pelah and C. Djerassi.
453. Mass Spectrometry in
Structural and Stereo-chemical Problems XLIV. Fragmentation of Monocyclic
Ketones.
Monatsh., 95,
166 (1964)
By D. H. Williams, H. Budzikiewicz, Z. Pelah and C. Djerassi.
454. Mass Spectrometry in
Structural and Stereo-chemical Problems XLIII. Mass Spectrometric Fragmentation
of Isohexylbromide and Five Deuteriated Derivatives.
J. Am. Chem.
Soc., 86, 877 (1964)
By D. H. Williams, C. Beard, H. Budzikiewicz and C. Djerassi.
455. Mass Spectrometry in
Structural and Stereo-chemical Problems XLIX. The Mass Spectrometric
Fragmentation of 5α-androstan-ll-one. Synthesis of 19-d1-5α-androstan-11-one.
Steroids, 3,
259 (1964)
By D. H. Williams and C. Djerassi.
456. Mass Spectrometry in
Structural and Stereo-chemical Problems XXXIX. Tropane Alkaloids.
Tetrahedron, 20,
585 (1964)
By E. C. Blossey, H. Budzikiewicz, M. Ohashi, G. Fodor and C. Djerassi.
457. Mass Spectrometry in
Structural and Stereo-chemical Problems XLV. The Mass Spectrometric
Fragmentation Behavior of Isohexyl Cyanide and Its Deuterium Analogs.
J. Am. Chem.
Soc., 86, 1386 (1964)
By R. Beugelmans, D. H. Williams, H. Budzikiewicz and C. Djerassi.
458. Akuammiline--an
Alkaloid from Picralima nitida.
Ann. Pharm.
France, 22, 35 (1964)
By L. Olivier, J. Levy, J. LeMen, M.-M. Janot, H. Budzikiewicz and C. Djerassi.
459. Optical Rotatory
Dispersion Studies XCV.
Effect of Ring Size in Some Bicyclic Ketones.
J. Am. Chem.
Soc., 86, 1755 (1964)
By C. Djerassi and J. E. Gurst.
460. Mass Spectrometry in
Structural and Stereo-chemical Problems LIV. The Structure of Tubulosine, A
Novel Alkaloid from Pogonopus tubulosus.
J. Am. Chem.
Soc., 86, 1895 (1964)
By P. Brauchli, V. Deulofeu, H. Budzikiewicz and C. Djerassi.
461. Mass Spectrometry in
Structural and Stereo‑chemical Problems LII. Structure and Mass
Spectrometric Fragmentation of Vindolinine.
Helv. Chim.
Acta, 47, 827 (1964)
By C. Djerassi, M. Cereghetti, M. Plat, H Budzikiewicz, M.-M. Janot and J.
LeMen.
462. Macrolide Antibiotics
XIII. Nystatin. Biosynthetic Definition of Some Structural Features.
TetrahedronLetters,1485(1964)
By A. J. Birch, C. W. Holzapfel, R. W. Rickards, C. Djerassi, M. Suzuki, J.
Westley, J. D. Dutcher and R. Thomas.
463. Macrolide Antibiotics
XIV. Nystatin. Chemistry and Partial Structure of the Antibiotic.
Tetrahedron
Letters, 1491 (1964)
By A. J. Birch, C. W. Holzapfel, R. W. Rickards, C. Djerassi, M. Suzuki, J. W.
Westley, J. D. Dutcher and P. C. Seidel.
464. Alkaloid Studies XLVI.
The Alkaloids of Aspidosperma Obscurinervium Azembuja: A New Class of
Heptacyclic Alka'oids.
J. Am. Chem.
Soc., 86, 2451 (1964)
By K. S. Brown and C. Djerassi.
465. Mass Spectrometry in
Structural and Stereo‑chemical Problems XLVII. Some Observations on Mass
Spectra of Pseudoindoxyl Alkaloids.
J. Am. Chem.
Soc., 86, 2620 (1964)
By N. Finch, I. Hsiu-Chu Hsu, W. I. Taylor, H. Budzikiewicz and C. Djerassi.
466. Mass Spectrometry in
Structural and Stereo-chemical Problems XLVIII. A Study of the Hydrogen
Transfer Reactions Accompanying Fragmentation Processes of 1-Keto Steroids.
Synthesis of Deuterated 5α-Androstan-l-ones.
J. Am. Chem.
Soc., 86, 2623 (1964)
By H. Powell, D. H. Williams, H. Budzikiewicz and C. Djerassi.
467. Pyrroles and Related
Compounds. Part IV.
Mass Spectrometry in Structural and Stereo-chemical Problems. Part XXX. Mass
Spectra of Monocyclic Derivatives of Pyrrole.
J. Chem. Soc.,
1949 (1964)
By H. Budzikiewicz, C. Djerassi, A. H. Jackson, G. W. Kenner, D. J. Newman and
J. M. Wilson.
468. Mass Spectrometry in
Structural and Stereo-chemical Problems. L. Fragmentation and Hydrogen
Migration Reactions of α,β-Unsaturated 3-Keto Steroids.
J. Am. Chem.
Soc., 86, 2825 (1964)
By R. H. Shapiro and C. Djerassi.
469. Mass Spectrometry in
Structural and Stereo‑chemical Problems. LI. Mass Spectral and
Enolization Studies on 7-Keto-5α-androstanes.
J. Am. Chem. Soc.,
86, 2832 (1964)
By R. Beugelmans, R. H. Shapiro, Lois J. Durham, D. H. Williams, H. Budzikiewicz
and C. Djerassi.
470. Mass Spectrometry in
Structural and Stereo-chemical Problems. LIII. Fragmentation and Hydrogen
Transfer Reactions of a Typical 3-Keto Steroid, 5α-Androstan-3-one.
J. Am. Chem.
Soc., 86, 2837 (1964)
By R. H. Shapiro, D. H. Williams, H. Budzikiewicz and C. Djerassi.
471. Optical Rotatory
Dispersion Studies LXXXVI. Preparation, Anomalous Rotatory Dispersion and
Circular Dichroism of Optically Active Trithiones.
Ann. 674,
62 (1964)
By H. Wolf, E. Bunnenberg, C. Djerassi, A. Luttringhaus and A. Stockhausen.
472. Alkaloid Studies XLVII.
The Structures of Five New Aspidosperma Alkaloids Related to Uleine.
Experientia 20,
363 (1964)
By M. Ohashi, J. A. Joule, B. Gilbert and C. Djerassi.
473. Alkaloid Studies XLV.
Mass Spectrometry in Structural and Stereochemical Problems XLII. Some Aspects
of the Chemistry and Mass Spectrometry of Uleine.
J. Chem. Soc., 2777 (1964)
By J. A. Joule and C. Djerassi.
474. Mass Spectrometry in
Structural and Stereo-chemical Problems LV. The Mass Spectrometric
Fragmentation of Ethylene Ketals.
J. Am. Chem.
Soc., 86, 3722 (1964)
By Z. Pelah, D. H. Williams, H. Budzikiewicz and C. Djerassi.
475. Mass Spectrometry in
Structural and Stereo‑chemical Problems LVI. Fragmentation and Hydrogen
Transfer Reaction of 4,4-Dimethy1-5α-Androstan-3-one and Related Ketones.
Tetrahedron, 20,
1987 (1964)
By R. H. Shapiro and C. Djerassi.
476. Optical Rotatory
Dispersion Studies XCVI. Applications of Optical Rotatory Dispersion and
Circular Dichroism in Stereochemistry.
Proc. Chem.
Soc., 314 (1964)
By C. Djerassi.
477. Mass Spectrometry in
Structural and Stereo‑chemical Problems LVII. Isotope Labeling and Mass
Spectrometry of Natural Products.
Pure Appl.
Chem., 9, 159 (1964)
By C. Djerassi.
478. Alkaloid Studies XLIX.
The Structure of Vallesamin and 0-Acetyl-Vallesamin.
Helv. Chim.
Acta, 47, 2072 (1964)
By A. Walser and C. Djerassi.
479. New Steroids from
Cactus Wilcoxia Viperina.
Ber. 97,
3118 (1964)
By C. Djerassi, J. C. Knight and H. Brockmann.
480. Alkaloid Studies LI.
The Structure of Aspidodasycarpine.
Tetrahedron
Letters, 3899 (1964)
By M. Ohashi, J. A. Joule and C. Djerassi.
481. Mass Spectrometry in
Structural and Stereo-chemical Problems LVIII. A Study of the Fragmentation
Processes of Some Lactams.
J. Am. Chem.
Soc., 86, 5536 (1964)
By A. M. Duffield, H. Budzikiewicz and C. Djerassi.
482. Mass Spectrometry in
Structural and Stereo-chemical Problems LIX. Mechanism of the Formal Loss of
Acetone from 2-0xo-5α-Steroids.
J. Am. Chem.
Soc., 86, 5542 (1964)
By J. E. Gurst and C. Djerassi.
483. Studies in Relation to
Biosynthesis XXXV. Macrolide Antibiotics XII. Methymycin.
J. Chem. Soc.,
5274 (1964)
By A. J. Birch, C. Djerassi, J. D. Dutcher, J. Majer, D. Perlman, E.
Pride, R. W. Rickards and P. J. Thomson.
484. Optical Rotatory
Dispersion Studies XCVII.
Anomalous Rotatory Dispersion and Circular Dichroism Curves Associated with
Thionamides. Application to Stereochemical Studies of Carboxylic Acids.
J. Am. Chem. Soc.,
87, 51 (1965)
By J. V. Burakevich and C. Djerassi.
485. Optical Rotatory
Dispersion Studies XCVIII. The Conformation of the 17-Acetyl Group in Steroids
and Its Correlation with Variable-Temperature Circular Dichroism.
J. Am. Chem.
Soc., 87, 60 (1965)
By K. M. Wellman and C. Djerassi.
486. Optical Rotatory
Dispersion Studies XCIX. Superposed Multiple Cotton Effects of Saturated
Ketones and Their Significance in the Circular Dichroism Measurement of
(-)-Menthone.
J. Am. Chem.
Soc., 87, 66 (1965)
By K. M. Wellman, P. H. A. Laur, W. S. Briggs, A. Moscowitz and C. Djerassi.
487. Optical Rotatory
Dispersion Studies C. Variable-Temperature Circular Dichroism Studies of
Ring-Conformational and Rotational Equilibria in Cyclohexanones.
J. Am. Chem.
Soc., 87, 73 (1965)
By K. M. Wellman, W.S. Briggs and C. Djerassi.
488. Optical Rotatory
Dispersion Studies CI. Rotatory Dispersion Curves of Cyclopropyl-Ketones and
Epoxy-Ketones.
Tetrahedron, 21,
163 (1965)
By C. Djerassi, W. Klyne, T. Norin, G. Ohloff and E. Klein.
489. Mass Spectrometry in
Structural and Stereochemical Problems LX. The Electron Impact Induced
Fragmentation of Steroidal Dimethylamines.
J. Am. Chem.
Soc., 87, 574 (1965)
By Z. Pelah, D. H. Williams, H. Budzikiewicz and C. Djerassi.
490. Mass Spectrometry in
Structural and Stereochemical Problems LXII. Fragmentation and Hydrogen
Transfer Reactions of β-Hydrindanones. Synthesis of Deuterated
β-Hydrindanones.
J. Am. Chem.
Soc., 87, 580 (1965)
By J. Karliner, H. Budzikiewicz and C. Djerassi.
491. Studies in Organic
Sulfur Compounds XVI. Synthesis and Reactions of Steroid Episulfides.
Tetrahedron, 21,
583 (1965)
By D. A. Lightner and C. Djerassi.
492. Mass Spectrometry in
Structural and Stereochemical Problems LXIII. Hydrogen Rearrangements Induced
by Electron Impact on N-n-butyl- and N-n-pentylpyrroles.
J. Am. Chem.
Soc., 87, 805 (1965)
By A. M. Duffield, R. Beugelmans, H. Budzikiewicz, D. A. Lightner, D. H.
Williams and C. Djerassi.
493. Mass Spectrometry in
Structural and Stereochemical Problems LXIV. A Study of the Fragmentation
Processes of Some Cyclic Amines.
J. Am. Chem.
Soc., 87, 810 (1965)
By A. M. Duffield, H. Budzikiewicz, D. H. Williams and C. Djerassi.
494. Mass Spectrometry in
Structural and Stereochemical Problems LXV. Synthesis and Fragmentation
Behavior of 15-Keto Steroids. The Importance of Interatomic Distance in the
McLafferty Rearrangement.
J. Am. Chem.
Soc., 87, 817 (1965)
By C. Djerassi, G. von Mutzenbecher, J. Fajkos, D. H. Williams and H.
Budzikiewicz.
495. The Structure of the
Cactus Sterol Peniocerol (cholest-8-ene-3β,6α-diol).
J. Chem. Soc.,
1160 (1965)
By C. Djerassi, R. D. H. Murray and R. Villotti.
496. Structure of
Tomatillidine.
J. Org. Chem., 30,
754 (1965)
By E. Bianchi, C. Djerassi, H. Budzikiewicz and Y. Sato.
497. Mass Spectrometry in
Structural and Stereochemical Problems LXVI. Mass Spectral Fragmentation of
6,7-Dimethoxycoumarin.
J. Org. Chem., 30,
955 (1965)
By R. H. Shapiro and C. Djerassi.
498. Magnetic Circular
Dichroism Studies: A Preliminary Report.
Proc. Natl.
Acad. Sci., 53, 579 (1965)
By D. A. Schooley, E. Bunnenberg and C. Djerassi.
499. Mass Spectrometry in
Structural and Stereochemical Problems LXIX. Methyl Migration in an Electron
Impact Induced Fragmentation.
J. Am. Chem.
Soc., 87, 1398 (1965)
By F. Komitsky, Jr., J. E. Gurst and C. Djerassi.
500. Alkaloid Studies LII.
The Alkaloids cf Vallesia Dichotoma.
Helv. Chim.
Acta, 48, 391 (1965)
By A. Walser and C. Djerassi.
501. Structure and Absolute
Configuration of Picraline, Pseudo-akuammigine, Akuammine and Akuammiline.
Bull. Soc. Chim,
France, 868 (1965)
By L. Olivier, J. Levy, J. LeMen, M.-M Janot, H. Budzikiewicz and C. Djerassi.
502. Mass Spectrometry in
Structural and Stereochemical Problems LXI. The Mass Spectrometric
Fragmentation Behavior of Anthracyclinones.
Ber., 98,
1260 (1965)
By H. Brockmann, Jr., H. Budzikiewicz, C. Djerassi, H.
Brockmann and J. Niemeyer.
503. Alkaloid Studies L. The
Alkaloids of Twelve Aspidosperma Species.
Tetrahedron, 21,
1141 (1965)
By B. Gilbert, A. P. Duarte, Y. Nakagawa, J. A. Joule, S. E. Flores, J. A.
Brissolese, J. Campello, E. P. Carrazzoni, R. J. Owellen, E. C. Blossey, K. S.
Brown and C. Djerassi.
504. Optical Rotatory
Dispersion Studies CII. Optical Rotatory Dispersion and Circular Dichroism of
Thiolacetates.
Tetrahedron, 21,
1203 (1965)
By K. Takeda, K. Kuriyama, T. Komeno, D. A. Lightner, R. Records and C.
Djerassi.
505. Optical Rotatory
Dispersion Studies CIII. Optical Rotatory Dispersion and Circular Dichroism of
Twisted Sulfur-Containing Chromophoric Systems.
Tetrahedron, 21,
1581 (1965)
By D. A. Lightner, C. Djerassi, K. Takeda, K. Kuriyama and T. Komeno.
506. Mass Spectrometry in
Structural and Stereochemical Problems LXX. A Study of the Fragmentation
Processes of Some Five-Membered N-Alkyl Lactams and N-Alkyl Succinimides.
J. Am. Chem.
Soc., 87, 2913 (1965)
By A. M. Duffield, H. Budzikiewicz and C. Djerassi.
507. Mass Spectrometry in
Structural and Stereochemical Problems LXXI. A Study of the Influence of
Different Heteroatoms on the Mass Spectrometric Fragmentation of Five-Membered
Heterocycles.
J. Am. Chem.
Soc., 87, 2920 (1965)
By A. M. Duffield, H. Budzikiewicz and C. Djerassi.
508. Mass Spectrometry in
Structural and Stereochemical Problems LXXII. A Study of the Fragmentation
Processes of Some Tobacco Alkaloids.
J. Am. Chem.
Soc., 87, 2926 (1965)
By A. M. Duffield, H. Budzikiewicz and C. Djerassi.
509. Mass Spectrometry in
Structural and Stereochemical Problems LXVII. Retro-Diels-Alder Decomposition
of Organic Molecules under Electron Impact.
Tetrahedron, 21,
1855 (1965)
By H. Budzikiewicz, J. I. Brauman and C. Djerassi.
510. Mass Spectrometry in
Structural and Stereochemical Problems LXVIII. Mass Spectrometric
Investigations of Hashish Constituents.
Tetrahedron, 21,
1881 (1965)
By H. Budzikiewicz, R. T. Aplin, D. A. Lightner, C.
Djerassi, R. Mechoulam and Y. Gaoni.
511. Alkaloid Studies LIII.
The Structures of Nine New Alkaloids from Aspidosperma Dasycarpon A. DC.
Tetrahedron, 21,
1717 (1965)
By J. A. Joule, M. Ohashi, B. Gilbert and C. Djerassi.
512. Mass Spectrometry in
Structural and Stereochemical Problems LXXIII. The Negative Ion Mass Spectra of
Some Simple Organic Compounds.
J. Am. Chem.
Soc., 87, 3180 (1965)
By R. T. Aplin, H. Budzikiewicz and C. Djerassi.
513. Mass Spectrometry in
Structural and Stereochemical Problems LXXVIII. Steroidal Δ4-3,6-Diketones.
Steroids, 6, 1
(1965)
By C. Djerassi, J. Karliner and R. T. Aplin.
514. Alkaloid Studies LIV.
Structure of Deoxytubulosine and Interconversion with Tubulosine.
Chem. Commun.,
317 (1965)
By H. Monteiro, H. Budzikiewicz, C. Djerassi, R. R. Arndt and W. H. Baarschers.
515. Recent Applications of
Mass Spectrometry in Steroid Chemistry.
Proceed. 1st
Internat. Congress on Hormonal Steroids, Academic Press, New York, 1965, Vol.
2, pp. 3-10
By C. Djerassi, H. Budzikiewicz and J. M. Wilson.
516. Terpenoids LVI. The
Complete Structure of the Triterpene Arborinol.
Tetrahedron
Letters, 39, 3433 (1965)
By Olga Kennard, L. Riva di Sanseverino, H. VorbrŸggen and C. Djerassi.
517. The Bromination of
15-Keto Steroids.
Steroids, 6,
239 (1965)
By C. Djerassi, J. Fajkos and A. R. Van Horn.
518. Alkaloid Studies
XLVIII. The Structure of Apparicine, a Novel Aspidosperma Alkaloid.
J. Chem. Soc.,
4773 (1965)
By J. A. Joule, H. Monteiro, L. J. Durham, B. Gilbert and C. Djerassi.
519. New Alkaloids from
Vinca Major.
Bull. Soc.
Chim., France, 2497 (1965)
By M. Plat, R. Lemay, J. LeMen, M.-M. Janot, C. Djerassi and H. Budzikiewicz.
520. Mass Spectrometry in
Structural and Stereochemical Problems LXXVI. The Mass Spectra of Porphyrins.
Tetrahedron, 21,
2913 (1965)
By A. H. Jackson, G. W. Kenner, K. M. Smith, R. T. Aplin, H. Budzikiewicz and
C. Djerassi.
521. Mass Spectrometry in
Structural and Stereochemical Problems LXXXIX. Exchange of Enolizable Hydrogens
in the Inlet System of the Mass Spectrometer.
Chem. Ind.
(London), 1697 (1965)
By H. Budzikiewicz and C. Djerassi.
522. Mechanism of Reduction
of Tosylhydrazones with Complex Metal Hydrides.
Ber., 98,
3236 (1965)
By M. Fischer, Z. Pelah, D. H. Williams and C. Djerassi.
523. Mass Spectrometry in
Structural and Stereochemical Problems LXXIV. A Study of the Fragmentation of
N-Acylpyrrolidines.
J. Am. Chem.
Soc., 87, 4554 (1965)
By A. M. Duffield and C. Djerassi.
524. Mass Spectrometry in
Structural and Stereochemical Problems LXXV. Occurrence of Alkyl Rearrangements
in the Fragmentation of Some Formaldehyde Acetals.
J. Am. Chem.
Soc., 87, 4559 (1965)
By P. Brown, C. Djerassi, G. Schroll, H. J. Jakobsen and S.-O. Lawesson.
525. Conformational Studies
of cis-lO-Methyl-2-Decalones.
Experientia, 21,
565 (1965)
By W. G. Dauben, R. M. Coates, N. D. Vietmeyer, L. J. Durham and C. Djerassi.
526. Alkaloid Studies LV.
19-Dehydroyohimbine, a Novel Alkaloid from Aspidosperma Pyricollum.
Experientia, 21,
566 (1965)
By R. R. Arndt and C. Djerassi.
527. Mass Spectrometry in
Structural and Stereochemical Problems LXXIX. Aliphatic and Alicyclic Nitro
Compounds.
J. Am. Chem.
Soc., 87, 4888 (1965)
By R. T. Aplin, M. Fischer, D. Becher, H. Budzikiewicz and C. Djerassi.
528. Mass Spectrometry in
Structural and Stereochemical Problems LXXXI. Stereospecificity in a
Hydrogen-Transfer Reaction Characteristic of 6-Keto Steroids.
J. Am. Chem.
Soc., 87, 4892 (1965)
By C. Djerassi, R. H. Shapiro and M. Vandewalle.
529. Mass Spectrometry in
Structural and Stereochemical Problems LXXXII. A Study of the Fragmentation of
Some Amaryllidaceae Alkaloids.
J. Am. Chem.
Soc., 87, 4902 (1965)
By A. M. Duffield, R. T. Aplin, H. Budzikiewicz, C. Djerassi, C. F. Murphy and
W. C. Wildman.
530. Mass Spectrometry in
Structural and Stereochemical Problems XCIV. Steroidal Δ16 -20
Ketones and Δ9(II)-12-Ketones.
Steroids, 6,
493 (1965)
By L. TškŽs and C. Djerassi.
531. Mass Spectrometry in
Structural and Stereochemical Problems XCVIII. Absence of Methyl Migration in
2,2,8,8-Tetramethylnonan-5-one.
Chem. Comm., 578
(1965)
By R. R. Arndt and C. Djerassi.
532. Studies in Organic
Sulfur Compounds XVII. The Synthesis of Previously Inaccessible Acylated
Enamines by Desulfurization of Thiazolidines.
J. Chem. Soc.,
6253 (1965)
By N. S. Crossley, C. Djerassi and M. A. Kielczewski.
533. Optical Rotatory
Dispersion Studies CIV. Low Temperature Circular Dichroism Behavior of Various
Chromophoric Derivatives of Alcohols and Amines.
Tetrahedron, 21,
3455 (1965)
By W. S. Briggs and C. Djerassi.
534. Mass Spectrometry in
Structural and Stereochemical Problems LXXX. Mass Spectrometric Fragmentation
of Nitrophenylhydrazones.
Nature, 208,
1314 (1965)
By C. Djerassi and S. D. Sample.
535. Mass Spectrometry in
Structural and Stereochemical Problems LXXXIV. The Nature of the Cyclic
Transition State in Hydrogen Rearrangements of Aliphatic Ethers.
J. Am. Chem.
Soc., 87, 5747 (1965)
By C. Djerassi and C. Fenselau.
536. Mass Spectrometry in
Structural and Stereochemical Problems LXXXV. The Nature of the Cyclic Transition
State in Hydrogen Rearrangements of Aliphatic Amines.
J. Am. Chem.
Soc., 87, 5752 (1965)
By C. Djerassi and C. Fenselau.
537. Mass Spectrometry in
Structural and Stereochemical Problems LXXXVI. The Nature of the Hydrogen
Transfer Reactions in Butyl Propionate, Benzoate and Phthalate.
J. Am. Chem.
Soc., 87, 5756 (1965)
By C. Djerassi and C. Fenselau.
538. Mass
Spectrometry in Structural and Stereochemical Problems. Two
Deuterated Isothiocyanates.
Acta.
Chem. Scand., 19, 2438 (1965)
By E. Bach, A.
Kjaer, R. H. Shapiro and C. Djerassi.
539. Mass Spectrometry in
Structural and Stereochemical Problems LXXVII. Influence of Restricted Rotation
as well as other Energetic Factors on the McLafferty Rearrangement of Ketones.
Chem. Ber., 99,
35 (1966)
By H. Fritz, H. Budzikiewicz and C. Djerassi.
540. Mass Spectrometry in
Structural and Stereochemical Problems C. Suppression of McLafferty
Rearrangements in the Mass Spectrometric Fragmentation of Even-Electron
Systems.
Chem. Comm., 12
(1966)
By C. Djerassi, M. Fischer and J. B. Thomson.
541. Mass Spectrometry in
Structural and Stereochemical Problems LXXXVIII. Rearrangements of Simple
Terpenes on Electron Impact.
J. Org. Chem., 31,
115 (1966)
By D. S. Weinberg and C. Djerassi.
542. Mass Spectrometry in
Structural and Stereochemical Problems XCIII. Further Observations on the
Importance of Interatomic Distance in the McLafferty Rearrangement. Synthesis
and Fragmentation Behavior of Deuterium Labeled 12-Keto Steroids.
J. Am. Chem.
Soc., 88, 536 (1966)
By C. Djerassi
and L. TškŽs.
543. Terpenoids LV. Studies
in the Chemistry of the Eremophilane Sesquiterpenes.
Tetrahedron, 22,
337 (1966)
By L. H. Zalkow, A. M. Shaligram, Shih-En Hu and C. Djerassi.
544. The Structure of the
Cactus Sterol Macdougallin (14α-Methyl-Δ8-cholestene-3β,
6α-diol). A Novel Link in Sterol Biogenesis.
J. Am. Chem.
Soc., 88, 790 (1966)
By J. C. Knight, D. I. Wilkinson and C. Djerassi.
545. Mass Spectrometry in
Structural and Stereochemical Problems CIII. Electron Impact Induced Methyl
Migration in Some 2-Arylidene-l-Decalones.
J. Am. Chem.
Soc., 88, 860 (1966)
By C. Djerassi, A. M. Duffield, F. Komitsky, Jr. and
L. TškŽs.
546. Steroid Oral
Contraceptives.
Science, 151,
1055 (1966)
By C. Djerassi.
547. Mass Spectrometry in
Structural and Stereochemical Problems LXXXVII. Possibility of Methyl
Migrations in Aromatic Compounds.
Chem. Ber., 99,
750 (1966)
By M. Fischer and C. Djerassi.
548. Mass Spectrometry in
Structural and Stereochemical Problems XCI. The Electron Impact Induced Elimination
of Water from 3-Hydroxy Steroids.
J. Org. Chem., 31,
710 (1966)
By J. Karliner, H. Budzikiewicz and C. Djerassi.
549. Optical Rotatory
Dispersion Studies CV. The Absolute Configuration of Rosonono and Rosolo
Lactones.
J. Chem. Soc.
(C), 624 (1966)
By C. Djerassi, B. Green, W. G. Whalley and C. G. DeGrazia.
550. Mass Spectrometry in
Structural and Stereochemical Problems LXXXIII. Partial Structure of Vobtusine.
Tetrahedron, 22,
1075 (1966)
By J. Poisson, M. Plat, H.
Budzikiewicz, L. J. Durham and C. Djerassi.
551. Alkaloid Studies LVI.
The Constitution of Vallesiachotamine.
J. Am. Chem.
Soc., 88, 1792 (1966)
By C. Djerassi, H. J. Monteiro, A. Walser and L. J.
Durham.
552. Mass Spectrometry in
Structural and Stereochemical Problems CIX. The Non-Specificity of Hydrogen Rearrangements
in Aryl Alkyl Ethers.
J. Am. Chem.
Soc., 88, 1840 (1966)
By J. K. MacLeod
and C. Djerassi.
553. Mass Spectrometry in
Structural and Stereochemical Problems CX. The Course of the Electron Impact
Induced Dehydrochlorination of Primary Alkyl Chlorides.
Chem. Comm., 193
(1966)
By A. M. Duffield, S. D. Sample and C. Djerassi.
554. Mass Spectrometry in
Structural and Stereochemical Problems XCII. Further Studies on the McLafferty
Rearrangement of Aliphatic Ketones
Tetrahedron, 22,
1391 (1966)
By H. Budzikiewicz, C. Fenselau and C. Djerassi
555. Mass Spectrometry in
Structural and Stereochemical Problems CVIII. Dueterium Isotope Effects in
Site-Specific Mass Spectrometric Rearrangement Processes
Tetrahedron
Letters, 19, 2183 (1966)
By J. K. MacLeod and Carl Djerassi
556. Mass Spectrometry in
Structural and Stereochemical Problems CI. A Study of the Fragmentation of Some
Azabicyclo Lactams
J. Org. Chem., 31,
1599 (1966)
By A. M. Duffield, Carl Djerassi, Lawrence Wise and Leo A. Paquette
557. Mass Spectrometry in
Structural and Stereochemical Problems CIV. The Nature of the Cyclic Transition
State in Hydrogen Rearrangements of Aliphatic Sulfides
J. Am. Chem.
Sac., 88, 1937 (1966)
By Shelia Sample and C. Djerassi
558. Mass Spectrometry in
Structural and Stereochemical Problems XCV. A Study of the Fragmentation
Processes of Same Pyridones on Electron Impact
Acta Chem.
Scand., 20, 361 (1966)
By A. M. Duffield, C. Dierassi, G. Schroll and S.-0. Lawesson
559. Mass Spectrometry in
Structural and Stereochemical Problems XCVI. Mass Spectrometric Fragmentation
of Azomethines
Chem. Ber., 99,
1541 (1966)
By M. Fischer and C. Djerassi
560. Mass Spectrometry in
Structural and Stereochemical Problems CV1. Occurrence of Alkyl and Aryl
Rearrangements in the Fragmentation of Some Organic Carbonates
J. Am, Chem.
Soc., 88, 2469 (1966)
By Peter Brown and Carl Djerassi
561. Terpenoids LVII. Mass
Spectrometry in Structural and Stereochemical Problems CV. Mass Spectral and
Nuclear Magnetic Resonance Studies of Pentacyclic Triterpene Hydrocarbons
J. Org. Chem., 31,
1945 (1966)
By J. Karliner and C. Djerassi
562. Alkaloid Studies LVII.
Indole Alkaloids of the Aspidospermine Class. "Phytochimie
et Plantes Medicinales des Terres du Pacifique".
C.N.R.S., Paris, (1966), pp. 191-204
By C. Djerassi.
563. Mass Spectrometry in
Structural and Stereochemical Problems CVII. Fragmentation Behavior of Semicarbazones.
Chem. Ger., 99,
2284 (1966)
By D. Becher, S.
D. Sample and C. Djerassi.
564. Mass Spectrometry in
Structural and Stereochemical Problems CXIX. Interaction of Remote Functional
Groups in Mass Spectrometry.
J. Am. Chem.
Soc., 88, 3883 (1966)
By M. M. Green, D. S. Weinberg and C. Djerassi.
565. Mass Spectrometry in
Structural and Stereochemical Problems CXIV. Electron Impact Induced Rearrangement
of Thiocarbonates, Carbamates and Thiocarbamates.
J. Am. Chem.
Soc., 88, 4049 (1966)
By J. B. Thomson, P. Brown and C. Djerassi.
566. Mass Spectrometry in
Structural and Stereochemical Problems XCVII. A Study of the Fragmentation
Processes of Oximes.
Tetrahedron, 22,
Suppl. 7, 145 (1966)
By D. Goldsmith, D. Becher, S. Sample and C. Djerassi.
567. Mass Spectrometry in
Structural and Stereochemical Problems CII. Study on the Structure of Cinchophyllamine
and Isocinchophythamine.
Bull. Soc. Chim.
France, 2309 (1966)
By P. Potier, C. Korn, J. LeMen, M.-M. Janot, H.
Budzikiewicz and C. Djerassi.
568. Optical Rotatory
Dispersion Studies CVI. Low Temperature Circular Dichroism of Various Polysubstituted
Cyclopentanones.
Bull. Soc. Chim.
France, 2378 (1966)
By C. Djerassi, R. Records, C. Ouannes and J. Jacques.
569. Selective Reduction of
Steroids by Homogeneous Catalytic Hydrogenation.
J. Am. Chem.
Soc., 88, 4537 (1966)
By C. Djerassi and J. Gutzwiller.
570. Mass Spectrometry in Structural
and Stereochemical Problems CXI. The Mass Spectrometric Fragmentation of
Substituted Naphthoquinones and its Application to Structural Elucidation of
Echinoderm Pigments.
J. Org. Chem.,
31, 3650 (1966)
By D. Becher, C. Djerassi, R. E. Moore, H. Singh and P. J. Scheuer.
571. Mass Spectrometry in
Structural and Stereochemical Problems CXII. Fragmentation of Two Bicyclic
Amines on Electron Impact.
J. Org. Chem., 31,
3832 (1966)
By D. S. Weinberg and C. Djerassi.
572. Mass Spectrometry in
Structural and Stereochemical Problems CXIII. Specific Hydrogen Rearrangements
in the Fragmentation of Hydrazones.
J. Org. Chem., 31,
3661 (1966)
By D. Goldsmith and C. Djerassi.
573. Mass Spectrometry in
Structural and Stereochemical Problems CXVIII. Aliphatic Epoxides.
Tetrahedron,
Suppl. 8, Part 1, 241 (1966)
By P. Brown, J. Kossanyi and C. Djerassi.
574. Magnetic Circular
Dichroism Studies II. Preliminary Results with Some Aromatic Compounds.
Proc. Natl.
Acad. Sci., 56, 1377 (1966)
By D. A. Schooley, E. Bunnenberg and C. Djerassi.
575. Mass Spectrometry in
Structural and Stereochemical Problems CXXI. Fragmentation and Hydrogen
Rearrangements in 4-Ketosteroids.
Helv. Chim.
Acta, 49, 2108 (1966)
By J. Gutzwiller and C. Djerassi.
576. Mass Spectrometry in
Structural and Stereochemical Problems CXV. Mass Spectra of tert-Butyl Ethers.
Arkiv Kemi, 26,
199 (1966)
By H. J. Jakobsen, G. Schroll, S.-O. Lawesson, D. A. Lightner, A. M. Duffield
and C. Djerassi.
577. Mass Spectrometry in
Structural and Stereochemical Problems CXVI. The Fragmentation of Some
Orthoesters and Orthothioesters upon Electron Impact.
Arkiv Kemi, 26,
279 (1966)
By G. Schroll, H. J. Jakobsen, S.-O. Lawesson, P. Brown and C. Djerassi.
578. Mass Spectrometry in
Structural and Stereochemical Problems CXX. Electron-Impact-Induced
Fragmentation Processes of Methoxycarbonylhydrazones.
J. Org. Chem., 31,
4050 (1966)
By J. K. MacLeod, D. Becher and C. Djerassi.
579. Optical Rotatory
Dispersion Studies CVIII. Anomalous Optical Rotation and Circular Dichroism of
N-Thioacylated α-Amino Acids and Derivatives in Various Solvents.
Acta Chem.
Scand., 20, 2781 (1966)
By E. Bach, A. Kjaer, R. Dahlbom, T. Walle, B. Sjšberg, E. Bunnenberg, C.
Djerassi and R. Records.
580. Optical Rotatory
Dispersion Studies CIX, An Octant Rule for the Azide Chromophore,
J. Am. Chem.
Soc., 89, 347 (1967)
By C. Djerassi, A. Moscowitz, K. Ponsold and G. Steiner.
581. Mass Spectrometry in
Structural and Stereochemical Problems XC. Mass Spectra of Linear Di-, Tri- and
Tetrapyrrolic Compounds.
Tetrahedron, 23,
603 (1967)
By A. N. Jackson, G, W. Kenner, H. Budzikiewicz, C. Djerassi and J. M. Wilson.
582. Terpenoids LVIII.
Griseogenin, a New Triterpenoid Sapogenin of the Sea Cucumber Halodeima Grisea
L.
Tetrahedron, 23,
761 (1967)
By B. Tursch, I. S. D. Guimaraes, B. Gilbert, R. T. Aplin, A. M. Duffield and
C. Djerassi.
583. Terpenoids LIX. The
Structure of Jegosapogenol.
Tetrahedron
Letters, 365 (1967)
By T. Nakano, M. Hasegawa, T. Fukumaru, S. Tobinaga, C. Djerassi, L. J. Durham
and H. Budzikiewicz.
584. Optical Rotatory
Dispersion Studies CVII. Factors Governing the Relative Stability of
Hydrindanones. Syntheses of 17-Alkyl-15-keto Steroids.
J. Am. Chem.
Soc., 89, 651 (1967)
By A. R. Van Horn and C. Djerassi.
585. Mass Spectrometry in
Structural and Stereochemical Problems CXXIX. The Course of the Electron Impact‑induced
Elimination of Hydrogen Sulphide from Aliphatic Thiols.
Chem. Comm., 109
(1967)
By A. M. Duffield, W. Carpenter and C. Djerassi,
586. Mass Spectrometry in
Structural and Stereochemical Problems CXXVIII. Further Studies on the Mass
Spectrometry of 15-Keto Steroids.
Steroids, 9,
163 (1967)
By A. R. Van Horn and C. Djerassi.
587. Deuterium Isotope
Effect in the Photochemistry of a 20-0xo-Steroid Analog
Chem. and Ind.,
358 (1967)
By C. Djerassi and B. Zeeh.
588. Mass Spectrometry in
Structural and Stereochemical Problems. CXXIV. Mass Spectral Fragmentation of
Alkylquinolines and Isoquinolines.
J. Org. Chem., 32,
997 (1967)
By Shelia D. Sample, D. A. Lightner, O. Buchardt and C. Djerassi.
589. Mass Spectrometry in
Structural and Stereochemical Problems CXXV. Mass Spectrometry of Some Steroid
Trimethylsilyl Ethers.
J. Org. Chem., 32,
1005 (1967)
By John Diekman and C. Djerassi.
590. Mass Spectrometry in
Structural and Stereochemical Problems CXXVI. Synthesis and Fragmentation
Behavior of Deuterium-Labeled 17-Keto Steroids.
J. Org. Chem., 32,
1012 (1967)
By L. Tškes, R. T. LaLonde and C. Djerassi.
591. Mass Spectrometry in
Structural and Stereochemical Problems CXXVII. Synthesis and Fragmentation Behavior
of Deuterium-Labeled 20-Keto Steroids.
J. Org. Chem., 32,
1020 (1967)
By L. Tškes, R. T. LaLonde and C. Djerassi.
592. Mass Spectrometry in
Structural and Stereochemical Problems CXXII. Possible Operation of Tautomerism
Before and After Electron-Impact Induced Fragmentation of Molecular Ions.
Tetrahedron, 23,
2095 (1967)
By J. K. MacLeod, J. B. Thomson and C. Djerassi,
593. Optical Rotatory
Dispersion Studies CX. On the Stereo-chemistry of Some Optically Active
Cyclobutanones.
Bull. Soc. Chim.
France, 950 (1967)
By J. Gore, C. Djerassi and J.-M. Conia.
594. Mass Spectrometry in
Structural and Stereochemical Problems CXXX. A Study of Electron Impact Induced
Migratory Aptitudes.
J. Am. Chem.
Soc., 89, 2711 (1967)
By P. Brown and C. Djerassi.
595. Mass Spectrometry in
Structural and Stereochemical Problems CXXXIII. Electron Impact Induced
Rearrangement Reactions of Organic Molecules.
Angew. Chem.
Intern. Ed. Eng., 6, 477 (1967)
By P. Brown and C. Djerassi.
595a. Elektronenstoss-induzierte Umlagerungen organischer MolekŸle.
Angew. Chem., 79,
481 (1967)
By P. Brown and C. Djerassi.
596. Mass Spectrometry in
Structural and Stereochemical Problems CXXXI. The Mass Spectrometric
Fragmentation of Thiuramdisulfides.
J. Org. Chem., 32,
2054 (1967)
By J. 0. Madsen, Sven-Olov Lawesson, A. M. Duffield and C. Djerassi.
597. Electron Impact Induced
Fragmentation of Organic Molecules
Proc. Symp.
"Some Newer Physical Methods in Structural Chemistry, Mass Spectrometry,
Optical Rotatory Dispersion and Circular Dichroism," United Trade Press,
London (1967), pp. 2-6.
By C. Djerassi.
598. Some Applications of
Newer Physical Methods in the Steroid Field.
Proc. Second
Internat. Congress Hormonal Steroids, Excerpta Medica Foundation, Amsterdam,
1967, pp. 3-15
By C. Djerassi.
599. Methods for Selective
Deuteration of Nuclear Positions in the Steroid Field.
Proc. Second
Internat. Congress Hormonal Steroids, Excerpta Medica Foundation, Amsterdam,
1967, pp. 261-268
By C. Djerassi.
600. Mass Spectrometry in
Structural and Stereochemical Problems CXVII. Aliphatic α,β-Epoxyketones.
Tetrahedron, 23,
2893 (1967)
By W. Reusch and C. Djerassi.
601. The Photolysis of
1-Phenyl and 1-Cyano Substituted Isoquinoline Iso-quinoline N-oxides to
Benz[f]-1,3-Oxazepines.
Tetrahedron
Letters, 2741 (1967)
By O. Buchardt, C. Lohse, A. M. Duffield and C. Djerassi.
602. Mass Spectrometry in
Structural and Stereochemical Problems. CXXXII. Electron Impact Induced
Alkyl and Aryl Rearrangements in α,β-Unsaturated Cyclic Ketones.
J. Am. Chem.
Soc., 89, 4765 (1967)
By R. L. N. Harris, F. Komitsky, Jr. and C. Djerassi.
603. Mass Spectrometry in
Structural and Stereochemical Problems. CXXXIV. Electron Impact Induced Alkyl
and Aryl Rearrangements in α-Arylidene Cyclic Ketones.
J. Am. Chem.
Soc., 89, 4775 (1967)
By R. L. N. Harris, F. Komitsky, Jr., and C. Djerassi.
604. Macrolide Antibiotics
XV. Nystatin - The Structure of the Aglycone.
Tetrahedron
Letters, 3745 (1567)
By M. Ikeda, M. Suzuki and C. Djerassi.
605. Mass Spectrometry in
Structural and Stereochemical Problems. CXXXVI. Primary Hydrogen Isotope
Effects in the McLafferty Rearrangement.
J. Am. Chem.
Soc., 89, 5182 (1967)
By J. K. MacLeod and C. Djerassi.
606. Mass Spectrometry in
Structural and Stereochemical Problems. CXXXVII. Examples of Interaction of
Remote Functional Groups after Electron Impact.
J. Am. Chem.
Soc., 89, 5190 (1967)
By M. M. Green and C. Djerassi.
607. Terpenoids LX. The
Structures of the Cactus Triterpene Lactones Stellatogenin and Thurberogenin.
J. Org. Chem., 32,
3150 (1967)
By M. Marx, J. Leclercq, B. Tursch and C. Djerassi.
608. Alkaloids of Callichilia
subsessilis. Cailichiline.
Bull. Soc. Chin.
France, 2669 (1967)
By M. Plat, N. Kunesch, J. Poisson, C. Djerassi and H. Budzikiewicz.
609. Mass Spectrometry in
Structural and Stereochemical Problems. CXXXV. Fragmentation and Synthesis of
α-Hydrindanones and Deuterated Analogs.
Chem. Ber., 100,
3204 (1967)
By B. Zeeh, G. Jones and C. Djerassi.
610. Mass Spectrometry in
Structural and Stereochemical Problems. CXLVII. The Course of the Electron
Impact Induced Elimination of Hydrogen Fluoride in Primary Alkyl Fluorides.
Chem. Comm.,
1022 (1567)
By W. Carpenter, A. M. Duffield and C. Djerassi.
611. Mass Spectrometry in
Structural and Stereochemical Problems. CXL. Competitive McLafferty
Rearrangements in Bifunctional Compounds.
J. Org. Chem., 32,
3485 (1967)
By J. K. MacLeod and C. Djerassi.
612. Mass Spectrometry in
Structural and Stereochemical Problems. CXLIII. Unusual Fragmentations in the
Mass Spectra of Some Aliphatic Ethers.
J. Am. Chem.
Soc., 89, 6164 (1967)
By W. Carpenter, A. M. Duffield and C. Djerassi.
613. Mass Spectrometry in
Structural and Stereochemical Problems. CXLV. Factors Governing the
Preferential Loss of Small versus Large Radicals in Ketones, Schiff Bases and
Ethers.
J. Am. Chem.
Soc., 89, 6167 (1967)
By W. Carpenter, A. M. Duffield and C. Djerassi.
614. Magnetic Circular
Dichroism Studies. III. Investigation of Some Optically Active Chlorins.
J. Am. Chem.
Soc., 89, 6170 (1967)
By B. Briat, D. A. Schooley, R. Records, E. Bunnenberg and C. Djerassi.
615. Alkaloid Studies.
LVIII. The Alkaloids of Six Aspidosperma Species.
Phytochemistry, 6,
1653 (1967)
By R. R. Arndt, S. H. Brown, N. C. Ling, P. Roller, C. Djerassi, J. M. Ferreira
F., B. Gilbert, E. C. Miranda and S. E. Flores.
616. Mass Spectrometry in Structural
and Stereochemical Problems. CXLI. Electron Impact Induced Fragmentations and
Rearrangements of Trimethylsilyl Ethers, Amines, and Sulfides.
J. Org. Chem., 32,
3904 (1967)
By J. Diekman, J. G. Thomson and C. Djerassi.
617. Mass Spectrometry in Structural
and Stereochemical Problems. CLI. Further Studies on the Mass Spectrometry of
17-Keto Steroids.
Steroids, 10,
653 (1967)
By G. Jones and C. Djerassi.
618. Magnetic Circular
Dichroism Studies. IV. Investigation of Some Annulene Derivatives.
J. Am. Chem.
Soc., 89, 7062 (1967)
By B. Briat, D. A. Schooley, R. Records, E. Bunnenberg and C. Djerassi.
619. Mass Spectrometry in
Structural and Stereochemical Problems. CXXXVIII. Fragmentation Processes of
Some Thiocarbonyl Compounds on Electron Impact.
Acta Chem.
Scand., 21, 2167 (1967)
By A. M. Duffield, C. Djerassi and J. Sandstršm
620. A High Priority?
Research Centers in Developing Nations.
Bulletin of the
Atomic Scientists, Jan. 1968, pp. 23-27
By C. Djerassi.
621. Mass Spectrometry in
Structural and Stereochemical Problems. CXLIV. Unusual Fragmentations of the
Low-Voltage Spectra of Aliphatic Ketones.
J. Am. Chem.
Soc., 90, 160 (1968)
By W. Carpenter, A. M. Duffield and C. Djerassi.
622. Mass Spectrometry in
Structural and Stereochemical Problems. CXLVI. Mass Spectrometric
Fragmentations Typical of Sterols with Unsaturated Side Chains.
J. Org. Chem., 33,
305 (1968)
By S. G. Wyllie and C. Djerassi.
623. Mass Spectrometry in
Structural and Stereochemical Problems. CXLIX. The Question of Ring Expansion
in the Fragmentation of 13C-Labeled Nitrogen Heterocycles.
J. Am. Chem.
Soc., 90, 678 (1968)
By M. Marx and C. Djerassi.
624. Homogeneous Catalytic
Hydrogenation and Deuteration of Steroids.
Chem. Ber., 101,
58 (1968)
By W. Voelter and C. Djerassi.
625. Terpenoids LXI. The
Structure of a New Triterpene, Putranjivadione.
Tetrahedron, 24,
1205 (1968)
By P. Sengupta, A. K. Chakraborty, A. M. Duffield, L. J. Durham and C.
Djerassi.
626. Optical Rotatory
Dispersion Studies CXI. The Octant Rule and Equatorial Alkoxycarbonyl and
Carboxyl Groups. Synthesis of Optically Active Adamantanones.
Tetrahedron
Letters, 1097 (1968)
By W. S. Briggs, M. Suchy And C. Djerassi.
627. Mass Spectrometry in
Structural and Stereochemical Problems. CXXXIX. The Fragmentation of Some Cyanohydrins
and O-Acylcyanohydrins Upon Electron Impact.
Arkiv Kemi, 28,
435 (1968)
By G. Schroll, S.-O. Lawesson, A. M. Duffield and C. Djerassi.
628. Mass Spectrometry in
Structural and Stereochemical Problems. CLIII. Electron Impact Promoted Fragmentation
of N-Alkyl Cyanides.
Org. Mass
Spectr., 1, 3 (1968)
By W. Carpenter, Y. M. Sheikh, A. M. Duffield and C. Djerassi.
629. Mass Spectrometry in
Structural and Stereochemical Problems. CL. Fragmentation and Synthesis of
Bicyclic and Monocyclic Models of 20-Keto Steroids.
Chem. Ber., 101,
1018 (1968)
By B. Zeeh, G. Jones and C. Djerassi.
630. Some Applications of
Magnetic Circular Dichroism and Optical Rotatory Dispersion.
Nature, 217,
918 (1968)
By B. Briat and C. Djerassi.
631. Mass Spectrometry in
Structural and Stereochemical Problems. CXXIII. Mass Spectrometry of Depsides,
Depsidones, Dibenzofurans, and Diphenylbutadienes with Positive and Negative
Ions.
Tetrahedron, 24, 2707 (1968)
By S. Huneck, C. Djerassi, D. Becher, M. Barber, Von Ardenne, K. Steinfelder
and R. TŸmmler.
632. Mass Spectrometry in
Structural and Stereochemical Problems. CXLII. Electron Impact Induced
Analogies to Thermal Elimination Processes in S-Methyl Xanthates and
Esters.
J. Org. Chem., 33,
1612 (1968)
By W. Scott Briggs and C. Djerassi.
633. The Pyrolysis of the
Epimeric d0- and 2-d1-2- Methylcyclohexyl-S-Methyl
Xanthates and Acetates.
J. Org. Chem., 33,
1625 (1968)
By W. Scott Briggs and C. Djerassi.
634. Mass Spectrometry in
Structural and Stereochemical Problems. CLIX. The Question of Ring Expansion in
the Electron Impact-induced Fragmentation of Aromatic Amines.
Chem. Comm., 414
(1968)
By A. V. Robertson, M. Marx and C. Djerassi.
635. Mass Spectrometry in
Structural and Stereochemical Problems. CLII. Electron Impact Promoted Fragmentation
of Some Substituted Germacyclopentanes and Germacyclopentenes.
J.
Organometallic Chem., 12, 123 (1968)
By A. M. Duffield, C. Djerassi, P. Mazerolles, J. Dubac and G. Manuel.
636. Alkaloid Studies. LIX.
The Structure and Absolute Configuration of Vallesamidine.
J. Am. Chem.
Soc., 90, 2445 (1968)
By S. H. Brown, C. Djerassi and P. G. Simpson.
637. Mass Spectrometry in
Structural and Stereochemical Problems. CXLVIII. Electron Impact Induced
Fragmentations of Cyclic Sulfites and Carbonates.
Tetrahedron, 24,
2949 (1968)
By P. Brown and C. Djerassi.
638. Selective Ketalization
of Steroid Ketones with Tris-triphenylphosphin-rhodium Chloride.
Chem. Ber., 101,
1154 (1968)
By W. Voelter and C. Djerassi.
639. Terpenoids LXII.
Eunicellin, a Diterpenoid of the Gorgonian Eunicella Stricta. X-Ray
Diffraction Analysis of Eunicellin Dibromide.
Tetrahedron
Letters, 2879 (1968)
By O. Kennard, D. G. Watson, L. Riva di Sanseverino, B. Tursch, R. Bosmans and
C. Djerassi.
640. Mass Spectrometry in
Structural and Stereochemical Problems. CLIV. Electron Impact Promoted Fragmentation
of Alkyl Tetrahydropyranyl Ethers and Thioethers.
J. Org. Chem., 33,
2266 (1968)
By S. J. Isser, A. M. Duffield and C. Djerassi.
641. Mass Spectrometry in
Structural and Stereochemical Problems. CLV. The Electron Impact Induced Fragmentations
and Rearrangements of Some Trimethylsilyl Ethers of Aliphatic Glycols and
Related Compounds.
J. Org. Chem., 33,
2271 (1968)
By J. Diekman, J. B. Thomson and C. Djerassi.
642. Mass Spectrometry in Structural
and Stereochemical Problems. CLXIII. Rearrangement Reactions in Organic Mass
Spectrometry.
Advances in
Mass Spectrometry, C. E. Kendrick, ed. The Institute of Petroleum, London,
1968, Vol. 4, pp. 199-210
By C. Djerassi.
643. Mass Spectrometry in Structural
and Stereochemical Problems. CLVIII. Electron Impact Promoted Fragmentation of
Triphenylmethyl Ethers.
Org. Mass
Spectr., 1, 251 (1968)
By Y. M. Sheikh, A. M. Duffield and C. Djerassi.
644. Mass Spectrometry in
Structural and Stereochemical Problems. CLX. On the Supposed Peri Interaction
in 4-Isobutylquinoline.
J. Org. Chem.,
33, 2962 (1968)
By T. Muraski and C. Djerassi.
645. Magnetic Circular
Dichroism Studies V. Investigation of Some Cyclopentaene Derivatives.
J. Am. Chem.
Soc., 90, 4691 (1968)
By B. Briat, D. A. Schooley, R. Records, E. Bunnenberg, C. Djerassi and E.
Vogel.
646. Mass Spectrometry in
Structural and Stereochemical Problems. CLXI. Elucidation of the Course of the
Characteristic Ring D Fragmentation of Steroids.
J. Am. Chem.
Soc., 90, 5465 (1968)
By L. TškŽs, G. Jones and C. Djerassi.
647. Magnetic Circular
Dichroism Studies VI. Investigation of Some Purines, Pyrimidines and
Nucleosides.
J. Am. Chem.
Soc., 90, 6163 (1968)
By W. Voelter, R. Records, E. Bunnenberg and C. Djerassi.
648. Mass Spectrometry in
Structural and Stereochemical Problems. CLVI. 1,4-Dihydropyridines Preparation
and Spectroscopic Properties.
Arkiv Kemi, 29,
525 (1968)
By G. Schroll, S. P. Nygaard, S.-O. Lawesson, A. M. Duffield and C. Djerassi.
649. Mass Spectrometry in
Structural and Stereochemical Problems. CLXIV. Electron Impact Promoted Fragmentation
of Some Thiosemicarbazones.
Org. Mass
Spectr., 1, 633 (1968)
By M. Younus Sheikh, A. M. Duffield and C. Djerassi.
650. Alkaloid Studies LX.
The Structures of Two Novel Aspidosperma Alkaloids,
Deoxyaspidodispermine and Aspidodispermine.
Tetrahedron
Letters, 5837 (1968)
By M. Ikeda and C. Djerassi.
651. Mass Spectrometry in
Structural and Stereochemical Problems. CLXV. A Study of Skeletal
Rearrangements in 13C-Labeled
Aromatic Amines.
J. Am. Chem.
Soc., 90, 6992 (1968)
By A. V. Robertson and C. Djerassi.
652. Mass Spectrometry in
Structural and Stereochemical Problems. CLXVII. Long Range Hydrogen Transfers
in Mass Spectrometry.
Helv. Chim.
Acta, 51, 1750 (1968)
By R. Brandt and C. Djerassi.
653. Mass Spectrometry in
Structural and Stereochemical Problems. CLVII. A Study of the Fragmentation
Processes of Some N-Acyl-2-Indolinols Upon Electron Impact.
Acta. Chem.
Scand., 22, 2329 (1968)
By O. Buchardt, A. M. Duffieldand C. Djerassi.
654. Optical Rotatory
Dispersion Studies CXII. An Octant Rule for the Thiocyanate Chromophore and its
Application to Rotameric Equilibrium Studies in the Steroid Series.
Tetrahedron, 24,
6913 (1968)
By C. Djerassi, D. A. Lightner, D. A. Schooley, K. Takeda, T. Komeno and K.
Kuriyama.
655. Optical Rotatory
Dispersion Studies CXIII. Molybdate-Pyranose Complexes.
Ann., 718,
238 (1968)
By W. Voelter, E. Beyer, R. Records, E. Bunnenberg and C. Djerassi.
656. Mass Spectrometry in
Structural and Stereochemical Problems. CLXVI. The Electron Impact Promoted
Fragmentation of Some Aliphatic 1,2-Glycols.
Org. Mass
Spectr., 1, 777 (1968)
By J. Kossanyi, J. P. Morizur, B. Furth, J. Wiemann, A. M. Duffield and C.
Djerassi.
657. Alkaloid Studies LXI.
The Structure of Twelve New Alkaloids from Aspidosperma Cylindrocarpon.
Journal Chem.
Soc. (C), 417 (1969)
By B. V. Milborrow and C. Djerassi.
658. Magnetic Circular
Dichroism Studies VII, Some Derivatives of Vitamin B12.
Bull. Soc. Chim.
France, 135 (1969)
By B. Briat and C. Djerassi.
659. Optical Rotatory
Dispersion Studies CXIV. Molybdate-Polyalkohol-Complexes.
Chem. Ber., 102,
1005 (1969)
By W. Voelter, E. Bayer, R. Records, E. Bunnenberg and C. Djerassi.
660. Mass Spectrometry in
Structural and Stereochemical Problems CLXVIII. Effect of Fluorine Substitution
on the McLafferty Rearrangement of Aliphatic Ketones.
Org. Mass
Spectr., 2, 317 (1969)
By W. Carpenter, A. M. Duffield and C. Djerassi.
661. Mass Spectrometry in
Structural and Stereochemical Problems CLXIX. Determination of the Structures
of the Ions in the Single and Double McLafferty Rearrangements by Ion Cyclotron
Resonance Spectroscopy.
J. Am, Chem.
Soc., 91, 2069 (1969)
By J. Diekman, J. K. MacLeod, C. Djerassi and J. D. Baldeschwieler.
662. Optical Rotatory
Dispersion Studies CXVI, The Circular Dichroism of Some Lactic Acid
Derivatives. A Reinterpretation.
Chem. Comm., 355
(1969)
By G. Barth, W. Voelter, E. Bunnenberg and C. Djerassi.
663. Mass Spectrometry in
Structural and Stereochemical Problems CLXX. A Study of the Effect of Ring Size
in Reciprocal Hydrogen Transfer.
J. Am. Chem.
Soc., 91, 2724 (1969)
By G. Eadon and C. Djerassi.
664. Applications of
Artificial Intelligence for Chemical Inference I. The Number of Possible
Organic Compounds. Acyclic Structures Containing C, H, O and N.
J. Am. Chem.
Soc., 91, 2973 (1969)
By J. Lederberg, G. L. Sutherland, B. G. Buchanan, E. A. Feigenbaum, A. V.
Robertson, A. M. Duffield, and C. Djerassi.
665. Applications of
Artificial Intelligence for Chemical Inference II. Interpretation of Low Resolution Mass Spectra of Ketones.
J. Am. Chem.
Soc., 91, 2977 (1969)
By A. M. Duffield, A. V. Robertson, C. Djerassi, B. G. Buchanan, G. L.
Sutherland, E. A. Feigenbaum and J. Lederberg.
666. Mass Spectrometry in
Structural and Stereochemical Problems CLXII. A Study of the Fragmentation
Processes of Some Benzoxazepines upon Electron Impact.
Acta. Chem.
Scand., 23, 126 (1969)
By O. Buchardt, A. M. Duffield and C. Djerassi.
667. Optical Rotatory
Dispersion Studies CXV. α-Hydroxy Acid—Molybdate Complexes.
Chem. Ber., 102,
2003 (1969)
By W. Voelter, E. Beyer, G. Barth, E. Bunnenberg and C. Djerassi.
668. Mass Spectrometry in
Structural and Stereochemical Problems CLXXI. Factors Governing the Loss of
Small vs. Large Radicals in the α-Fission of Aliphatic Amines.
Org. Mass
Spectr., 2, 625 (1969)
By C. A. Brown, A. M. Duffield and C. Djerassi.
669. Mass Spectrometry in
Structural and Stereochemical Problems CLXXII. The Electron Impact Promoted
Fragmentation of 1,2-Cyclohexanedioi.
Org. Mass
Spectr., 2, 631 (1969)
By M. K. Strong and C. Djerassi.
670. Mass Spectrometry in
Structural and Stereochemical Problems CLXXIV. Electron Impact Induced
Fragmentation of Some Aryl- and Alkylsulfonylthioureas.
Org. Mass
Spectr., 2, 641 (1969)
By A. M. Duffield, C. Djerassi, R. Neidlein, and E. Heukelbach.
671. Mass Spectrometry in
Structural and Stereochemical Problems CLXXVII. Application of Ion Cyclotron
Resonance to the Structure Elucidation of the C3H6O Ion
Formed in the Double McLafferty Rearrangement.
J. Am. Chem.
Soc., 91, 3986 (1969)
By G. Eadon, J. Diekman and C. Djerassi.
672. Terpenoids LXIV.
Chemical Studies of Marine Invertebrates V. The Isolation of Three New
Holothurinogenins and Their Chemical Correlation with Lanosterol.
J, Am. Chem.
Soc., 91, 4918 (1969)
By P. Roller, C. Djerassi, R. Cloetens and B. Tursch,
673. Mass Spectrometry in
Structural and Stereochemical Problems CLXXVI. The Course of the Electron
Impact Induced Fragmentation of Androstane.
J. Am. Chem.
Soc., 91, 5017 (1969)
By L. TškŽs and C. Djerassi.
674. Terpenoids LXIII. The
Structure of Jegosapogenol and the Configuration at C-21 and C-22 in
Barringtogenol D, Aescigenin, Protoaescigenin and Isoaescigenin.
J. Org. Chem., 34,
3135 (1969)
By T. Nakano, M. Hasegawa, T. Fukumaru, L. J. Durham, H. Budzikiewicz and C.
Djerassi.
675. Mass Spectrometry in
Structural and Stereochemical Problems CLXXIII. The Electron Impact induced
Fragmentations and Rearrangements of Trimethylsilyl Esters of ω-Phenoxyalkanoic
Acids.
J. Org. Chem., 34,
3147 (1969)
By J. Diekman, J. B. Thomson and C. Dierassi.
676. Prognosis for the
Development of New Chemical Birth Control Agents.
Science, 166,
468 (1969)
By Carl Djerassi.
677. Magnetic Circular
Dichroism Studies VIII. Investigation of Some Purine Cyclonucleosides.
J. Am. Chem.
Soc., 91, 6165 (1969)
By W, Voelter, G. Barth, R. Records, E. Bunnenberg and C. Djerassi.
678. Magnetic Circular
Dichroism Studies IX. The Magnetic
Circular Dichroism of Carbonyl Compounds.
Chem. Comm.,
1246 (1969)
By G. Barth, E. Bunnenberg and C. Djerassi.
679. Mass Spectrometry in
Structural and Stereochemical Problems CLXXIX. The Electron Impact Induced
Rearrangement of 1-Phenylheptenes. Further Evidence for Double Bond Lability.
J. Am. Chem.
Soc., 91, 6808 (1969)
By A. F. Gerrard and C. Djerassi.
680. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXIII. A Study of the Electron Impact
Induced Fragmentation of Aliphatic Aldehydes.
J. Am. Chem.
Soc., 91, 6814 (1969)
By R. J. Liedtke and C. Djerassi.
681. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXVI. Electron Impact Promoted
Eight-Membered Hydrogen Transfer in Vinyl Ethers.
Chem. Comm.,
1385 (1969)
By M. Katoh and C. Djerassi.
682. Mass Spectrometry in
Structural and Stereochemical Problems CLXXX. Oxygen Rearrangement and
Fragmentation Reactions After Electron Impact on 4-Hydroxy- and
4-Alkoxy-1-Decalones.
J. Org. Chem.,
34, 4091 (1969)
By R. T. Gray, M. Ikeda and C. Djerassi.
683. Applications of Artificial
Intelligence for Chemical Inference III. Aliphatic Ethers Diagnosed by Their
Low Resolution Mass Spectra and NMR Data.
J. Am. Chem. Soc., 91, 7440 (1969)
By G. Schroll, A. M. Duffield, C. Djerassi, B. G. Buchanan, G. L. Sutherland,
E. A. Feigenbaum and J. Lederberg.
684. Mass Spectrometry in
Structural and Stereochemical Problems CLXXVIII. The Electron Impact Promoted
Fragmentation of 1,2-Cyclohexane Oxide.
Org. Mass
Spectr., 2, 1201 (1969)
By M. K. Strong, P. Brown and C. Djerassi.
685. Mass Spectrometry in
Structural and Stereochemical Problems CLXXV. The Mass Spectra of α-Hydroxy
Ketones. Evidence Against Electron Impact Induced Alkyl Shifts in Ketols.
Journal Chem.
Soc.(C), 2550 (1969)
By C. A. Brown and C. Djerassi.
686. Alkaloid Studies LXII.
X-ray Crystallographic Structure Determination of Dichotine Hydrobromide.
J. Am. Chem.
Soc., 92, 222 (1970)
By N. C. Ling, C. Djerassi and P. G. Simpson
687. Mass Spectrometry in
Structural and Stereochemical Problems CXC. Electron Impact Induced Triple
Hydrogen Migration in Vinyl Alkyl Ethers.
J. Am. Chem.
Soc., 92, 731 (1970)
By M. Katoh and C. Djerassi.
688. Optical Rotatory
Dispersion Studies CXVII. Absolute Configurational Assignments of Some α-Substituted
Phenyl‑acetic Acids by Circular Dichroism Measurements.
J. Am. Chem.
Soc., 92, 875 (1970)
By G. Barth, W. Voelter, H. S. Mosher, E. Bunnenberg and C. Djerassi.
689. Terpenoids LXV.
Chemical Studies of Marine Invertebrates. Praslinogenin, a New Holothurinogenin
from the Indian Ocean Sea Cucumber, Bohadschia koellikeri.
Tetrahedron
Letters 467 (1970)
By B. Tursch, R. Cloetens and C. Djerassi.
690. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXII. Investigations in the 10-Phenyl-2-Decalone
System. The Synthesis and Electron-Impact Promoted Phenyl Migration of trans-10-Phenyl-2-Octalone.
J. Org. Chem., 35,
753 (1970)
By R. T. Gray and C. Djerassi.
691. Magnetic Circular
Dichroism Studies XI. Investigation of Some Adenosine Cyclonucleosides.
Tetrahedron
Letters, 727 (1970)
By D. L. Elder, E. Bunnenberg, C. Djerassi, M. Ikehara and W. Voelter.
692. Demonstration of a
Biogenetically Unprecedented Side Chain in the Marine Sterol, Gorgosterol.
J. Am. Chem.
Soc., 92, 2179 (1970)
By R. L. Hale, J. Leclercq, B. Tursch, C. Djerassi R. A. Gross, Jr., A. J.
Weinheimer, K. Gupta, and Paul J. Scheuer.
693. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXIV. Charge Localization in Fragment
Ions of Amino Ketones and Esters.
Org. Mass
Spectr., 3, 439 (1970)
By J. Cable, G. W. Adelstein, J. Gore and C. Djerassi.
694. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXV. Effect of the Phenyl Group in
the Moss Spectra of Trans-10-Phenyl-2-Decalone and Trans-10-Phenyldecalin.
Org. Mass
Spectr., 3, 245 (1970)
By R. T. Gray and C. Djerassi.
695. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXI. Further Studies of Remote Group
Interactions After Electron Impact in 4-Substituted Cyclohexanones.
J. Org. Chem., 35, 1525
(1970)
By R. T. Gray, R. J. Spangler, and C. Djerassi.
696. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXVIII. The Electron Impact Induced
Behavior of Branched Ketones and Esters, with Special Emphasis on Hydrogen
Rearrangements.
J. Am. Chem.
Soc., 92, 3084 (1970)
By G. Eadon and C. Dierassi.
697. Mass Spectrometry in
Structural and Stereochemical Problems CXCII. Skeletal Rearrangement in the
Fragmentation of Phenyl Azide.
Tetrahedron
Letters 1875 (1970)
By P. D. Woodgate and C. Djerassi.
698. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXVII. A Study of Skeletal
Rearrangements in Chromans by Combined 13C and Deuterium Labeling.
Org. Mass
Spectr., 3, 753 (1970)
By J. R. Trudell, S. D. Sample and C. Djerassi.
699. Terpenoids LXVI.
Simultaneous Functionalization of the C-18 and C-19 Angular Methyl Groups in 11β-Hydroxylanostan-3β-yl
Acetate by Lead Tetraacetate-Iodine Oxidation.
J. Chem. Soc.(C)
1089 (1970)
By P. Roller and C. Dierassi
700. Contraception 1984:
Putting Something in the Water Supply.
Family Planning
Perspectives, 2, No. 3, 29 (1970)
By C. Djerassi.
701. Magnetic Circular
Dichroism Studies X. Investigation
of some Carbonyl Compounds.
Symp. Faraday
Soc., No. 3, 49 (1969)
By G. Barth, E. Bunnenberg, C. Djerassi, D. Elder and R. Records.
702. Side Chain
Transformations and Deuterium Labeling in the Steroidal Sapogenin Series.
J. Org. Chem., 35,
2571 (1970)
By W. H. Faul, A. Failli and C. Djerassi.
703. Terpenoids LXVII.
Chemical Studies of Marine Invertebrates VII. Interrelation of
Seychellogenin and Lanosterol through Lanostane-3β,11β ,18-triol.
J. Org. Chem., 35,
2585 (1970)
By P. Roller, B. Tursch and C. Djerassi.
704. Alkaloid Studies LXIV.
The Crystal Structure and Absolute Configuration of (-)
17-O-Methyl-Aspidodispermine Nb-Hydrobromide.
Tetrahedron
Letters, 3015 (1970)
By N. C. Ling and C. Djerassi.
705. Mass Spectrometry in
Structural and Stereochemical Problems CXCI. Applications of Mass Spectrometry
in the Steroid Field.
Pure and Appl.
Chem., 21, 205 (1970)
By C. Djerassi.
706. Birth Control after
1984
Science, 169,
941 (1970)
By C. Djerassi.
707. The Structure and
Absolute Configuration of the Marine Sterol, Gorgosterol.
J. Am. Chem.
Soc., 92, 5281 (1970)
By N. C. Ling, R. L. Hale and C. Djerassi
708. Mass Spectrometry in
Structural and Stereochemical Problems CLXXXIX. Electron Impact Induced
Fragmentations and Rearrangements of Alkoxycyclohexanol Trimethylsilyl
Ethers and Alkoxycyclohexyl Trimethylsilanes.
Org. Mass
Spectr., 3, 973 (1970)
By R. T. Gray, J. Diekman, G. L. Larson, W. K. Musker and C. Djerassi.
709. Mass Spectrometry in
Structural and Stereochemical Problems CXCIII. On the Combined Hydroxyl and
Water Loss in Nitrophenylhydrazones.
Org. Mass
Spectr., 3, 1089 (1970)
By R. J. Liedtke, A. M. Duffield and C. Djerassi.
710. Mass Spectrometry in
Structural and Stereochemical Problems CXCV. The Structure of the [C6H6O]+
Ion in the Spectrum of Phenyl Alkyl Ethers.
Org. Mass
Spectr., 3, 1093 (1970)
By P. D. Woodgate and C. Djerassi.
711. Mass Spectrometry in
Structural and Stereochemical Problems CXCIV. Mass Spectrometric Fragmentation
of Steroidal Sapogenins.
Org. Mass
Spectr., 3, 1187 (1970)
By W. H. Faul and C. Djerassi.
712. Alkaloid Studies LXIII.
The Constitution and Chemistry of Dichotine and 11-Methoxydichotine.
J. Am. Chem.
Soc., 92, 6019 (1970)
By N. C. Ling and C. Djerassi.
713. Applications of
Artificial Intelligence for Chemical Inference VI. Approach to a General Method
of Interpreting Low Resolution Mass Spectra with a Computer.
Helv. Chim.
Acta, 53, 1394 (1970)
By A. Buchs, A. B. Delfino, A. M. Duffield, C. Djerassi, B. G. Buchanan, E. A.
Feigenbaum and J. Lederberg.
714. Mass Spectrometry in
Structural and Stereochemical Problems CXCV. Application of Ion Cyclotron
Resonance to the Structure Elucidation of the C3H6O Ion
Formed in the Double McLafferty Rearrangement.
J. Am. Chem.
Soc., 92, 6205 (1970)
By G. Eadon, J. Diekman and C. Djerassi.
715. Optical Rotatory
Dispersion Studies CXVIII.
Aliphatic C-Nitroso Compounds.
J. Org. Chem., 35,
3591 (1970)
By N. D. Vietmeyer and C. Djerassi.
716. Applications of
Artificial Intelligence for Chemical Inference IV. Saturated Amines Diagnosed
by their Low Resolution Mass Spectra and Nuclear Magnetic Resonance Spectra.
J. Am. Chem. Soc., 92, 6831 (1970)
By A. Buchs, A. M. Duffield, C. Djerassi, G. Schroll, A. B. Delfino, B. G.
Buchanan, G. L. Sutherland, E. A. Feigenbaum and J. Lederberg.
717. Mass Spectrometry in
Structural and Stereochemical Problems- CXCVII. Electron-Impact Induced
Functional Group Interaction in 4-Benzyloxycyclohexyl Trimethylsily1 Ether.
Organic Mass
Spectrometry 4, 257 (1970)
By Paul D. Woodgate, Robin T. Gray and Carl Djerassi
718. Mass Spectrometry in
Structural and Stereochemical Problems - CXCVIII. A study of the Fragmentation
Processes of Some α,β-Unsaturated Aliphatic Ketones.
Organic Mass
Spectrometry, 4, 273 (1970)
By Younus M. Sheikh, A. M. Duffield and Carl Djerassi
719. Applications of
Artificial Intelligence for Chemical Inference V. An Approach to the Computer
Generation of Cyclic Structures. Differentiation between All The Possible
Isomeric Ketones of Composition C6H10O.
Organic Mass
Spectrometry, 4, 493(1970)
By Younus M. Sheikh, Armand Buchs, Allan B. Delfino Gustav Schroll, A. M.
Duffield, Carl Djerassi, B. G. Buchanan, G. L. Sutherland, E. A. Feigenbaum and
J. Lederberg.
720. Physical Methods in
Steroid Chemistry.
Intra Science
Chemistry Reports, 4, 165 (1970)
By Carl Djerassi.
721. Mass Spectrometry in
Structural and Stereochemical Problems CC. A Study of the Fragmentation
Processes of some Pyrilium Salts.
Organic Mass
Spectr., 5, 87 (1971)
By A. M. Duffield, C. Djerassi and A. T. Balaban.
722. Acansterol: A
Cyclopropane-containing Marine Sterol from Acanthaster planci.
Chem. Comm., 217
(1971)
By Y. M. Sheikh, C. Djerassi and B. W. Tursch.
723. Research Centers of
Excellence in Developing Countries.
Proceedings,
20th Pugwash Conference on Science and World Affairs, pp. 159-162 (1970)
By Carl Djerassi.
724. A Possible Catalytic
Role for Pugwash in Defining New Contraceptive Methods for Developing
Countries.
Proceedings,
20th Pugwash Conference on Science and World Affairs, pp. 163-164 (1970).
725a "Prognosis for the
Development of New Birth Control Agents" (see No. 676) by Carl Djerassi.
Reprinted in
"Global Ecology" (ed. by J. P. Holdren and P. R. Ehrlich), Harcourt
Grace, New York, 1971.
725b. "Birth Control after
1984" (see No. 706) by Carl Djerassi.
Reprinted in:
Ob. Gyn. News, April 1, 1971;
Zero Population Growth National Reporter, Vol. 3, Nos. 3 (March) and 6 (June),
1971;
"Environmental Protection" (by L. L. Jaffe and L. H. Tribe), Bracton
Press, Chicago, 1971, pp. 589-593.
726. Magnetic Circular
Dichroism Studies XII. The Determination of Tryptophan in Proteins.
J. Amer. Chem.
Soc., 93, 2545 (1971)
By G. Barth, R. Records, E. Bunnenberg, C. Djerassi and W. Voelter.
727. Mass Spectrometry in
Structural and Stereochemical Problems CCV. The Mass Spectra of Trimethylsilyl
Ethers of Phenols and the Importance of Neighboring Group Participation in
Fragmentation.
Org. Mass
Spectr., 5, 487 (1971)
By G. G. Smith and C. Djerassi.
728. Mass Spectrometry in
Structural and Stereochemical Problems CXCIX. Contrasting Fragmentations of
Singly-and Doubly-Charged o-, m- and p-Hydroxyalkylphenones
and their Trimethylsilyl Ethers.
Org. Mass Spectr.,
5, 505 (1971)
By G. G. Smith and C. Djerassi.
729. Mass Spectrometry in
Structural and Stereochemical Problems CCIV. Spectra of Hydantoins II. Electron
Impact Induced Fragmentation of Some Substituted Hydantoins.
Org. Mass
Spectr., 5, 551 (1971)
ReneŽ A. Corral, Orfeo O. Orazi, A. M. Duffield and C. Djerassi.
730. Magnetic Circular
Dichroism Studies XV. Organic Chemical Applications of Magnetic Circular
Dichroism.
Pure and Appl.
Chem., 25, 57 (1971)
By C. Djerassi, E. Bunnenberg and D. Elder.
731. Mass Spectrometry in
Structural and Stereochemical Problems CCII. Interaction of Remote Functional
Groups in Acyclic Systems upon Electron Impact.
J. Org. Chem., 36,
1796 (1971)
By M. Sheehan, R. J. Spangler, M. Ikeda and C. Djerassi.
732. Alkaloid Studies LXV.
Confirmation of the Heptacyclic Structure of the Aspidosperma Obscurinervium
Alkaloids Through X-Ray Analysis of Obscurinervine Hydrobromide.
Tetrahedron
Letters, 27, 2527 (1971)
By J. Kahrl, T. Gebreyesus and C. Djerassi.
733. Mass Spectrometry in
Structural and Stereochemical Problems CCVI. Observation of the Fragmentation
of Olefinic Hydrocarbons.
Org. Mass
Spectr., 5, 817 (1971)
By K. K. Mayer and C. Djerassi.
734. Mass Spectrometry in
Structural and Stereochemical Problems CCIII. The Course of a Triple Hydrogen
Migration in Esters of Trimellitic Anhydride.
J. Amer. Chem.
Soc., 93, 3905 (1971)
By J. Cable and C. Djerassi.
735. Mass Spectrometry in
Structural and Stereochemical Problems CCVII. Fragmentation of Unsaturated
Ethers.
Org. Mass
Spectr., 5, 895 (1971)
By J. P. Morizur and C. Djerassi.
736. Mass Spectrometry in
Structural and Stereochemical Problems CCI. The Fragmentation of Aliphatic
Ketones in the Mass Spectrometer: A Detailed Study of Nonan-4-one using Ion
Kinetic Energy Spectroscopy.
Org. Mass
Spectr., 5, 917 (1971)
By G. Eadon, C. Djerassi, J. H. Beynon and R. M. Caprioli
737. Magnetic Circular
Dichroism Studies XIII. A Study on Purified Bovine Erythrocuprein.
Biochim. Biophs.
Acta, 243, 203 (1971)
By U. Weser, E. Bunnenberg, R. Cammack, C. Djerassi, L. Flohe, G. Thomas and W.
Voelter.
738. Mass Spectrometry in
Structural and Stereochemical Problems CCIX. Functional Group Interaction after
Electron Impact. Anomalous Ether Cleavage in Bifunctional Benzyloxy
Ethers.
J. Org. Chem., 36,
3526 (1971)
By M. Sheehan, R. J. Spangler and C. Djerassi.
739. Magnetic Circular
Dichroism Studies XIV. Investigation of Xanthine Oxidase.
Eur. J.
Biochem., 22, 580 (1971)
By E. Bayer, A. Bacher, P. Krauss, W. Voelter, G. Barth, E. Bunnenberg and C.
Djerassi.
740. Reversible Fertility
Control.
XXIIIrd
International Congress of Pure and Applied Chemistry, Vol. III, pp.
55-80 (1971)
By Carl Djerassi.
741. The Application of
Artificial Intelligence in the Interpretation of Low-Resolution Mass Spectra.
Advances in Mass
Spectrometry, Vol. 5, 314 (1971)
By A. Buchs, A. B. Delfino, C. Djerassi, A. M. Duffield, B. G. Buchanan, E. A.
Feigenbaum, J. Lederberg, G. Schroll and G. L. Sutherland.
742. Fertility Control
Through Abortion - An Assessment of the Period 1950 - 1980.
Bulletin of the
Atomic Scientists, 28, (No. 1), 9 (1972)
By Carl Djerassi.
743. Synthesis and
Biological Activity of D-Bishomo Steroid: Journal of Medicinal Chemistry, 15,
89 (1972)
By G. Eadon and C. Djerassi.
744. Mass Spectrometry in
Structural and Stereochemical Problems CCVIII. The Effect of Double Bonds Upon
the McLafferty Rearrangement of Carbonyl Compounds.
J. Amer. Chem.
Soc., 94, 473 (1972)
By J. R. Dias, Y. M. Sheikh and C. Djerassi.
745. Mass Spectrometry in
Structural and Stereochemical Problems CCX. Evidence for Transition States of
Different Ring Sizes in the Loss of C4H8 from Phenyl
n-Butyl Ether in the Mass Spectrometer.
J. Amer. Chem.
Soc., 94, 482 (1972)
By A. Yeo and C. Djerassi.
746. Mass Spectrometry in
Structural and Stereochemical Problems CCXIII. The Effect of Ring Size Upon the
Electron Impact Induced Behavior of Steroidal Ketones.
J. Org. Chem., 37,
155 (1972)
By S. Popov, G. Eadon and C. Djerassi.
747. Mass Spectrometry in
Structural and Stereochemical Problems CCXI. The Effect of Structural
Variations on the Electron Impact Induced Fragmentation of Steroid
Hydrocarbons.
J. Amer. Chem.
Soc., 94, 1282 (1972)
By G. Eadon, S. Popov and C. Djerassi.
748. Magnetic Circular
Dichroism Studies XVII. Magnetic Circular Dichroism Spectra of Proteins. A New
Method for the Ouantitative Determination of Tryptophan.
J. Amer. Chem.
Soc., 94, 1293 (1972)
By G. Barth, R.
Records, E. Bunnenberg, C. Djerassi and W. Voelter.
749. Mass Spectrometry in
Structural and Stereochemical Problems CCXV. Behavior of Phenyl-Substituted α,β-
Unsaturated Ketones Upon Electron Impact. Promotion of Hydrogen Rearrangement
Processes.
J. Org. Chem.,
37, 776 (1972)
By R. J. Liedtke, A. F. Gerrard, J. Diekman and C. Djerassi.
750. Pugwash Population
Problems of Centers of Excellence.
Proceed. of 21
Pugwash Conference on Science and World Affairs (Sinaia, Romania 1971), pp.
183-188
By C. Djerassi.
751. Magnetic Circular
Dichroism Studies XVI. Investigations of Some Conjugated Olefins.
J. Org. Chem., 37,
1209 (1972)
By W. G. Dauben, J. I. Seeman, P. H. Wendschuh, G. Barth, E. Bunnenberg and C.
Djerassi.
752. Mass Spectrometry in
Structural and Stereochemical Problems CCXVI. Anomalous Cleavage Ions in
Bifunctional Compounds Resulting from Participative Interaction.
Org. Mass
Spectre., 6, 384 (1972)
By J. R. Dias and C. Djerassi.
753. 5α-Pregn-9(11)-Ene-3β,
6α -Dio1-20-One and 5α-Cholesta-9(11), 20(22)-Diene-3β,
6α-Diol-23-One‑ Two Novel Steroids from the Starfish Acanthaster
Planci
J. Amer. Chem.
Soc., 94, 3278 (1972)
By Y. M. Sheikh, B. Tursch and C. Djerassi.
754. Alkaloid Studies LXVI.
Reactions of Some Aspidosperma Alkaloids with Metachloroperbenzoic Acid.
Removal of the Angular Ethyl Group of Aspidospermine.
J. Chem. Soc.
(Perkin), 849 (1972)
By T. Gebreyesus and C. Djerassi.
755. Mass Spectrometry in
Structural and Stereochemical Problems CCXII. Induced Triple Hydrogen
Rearrangements and Other Fragmentations of Alkyl Vinyl Ethers and Thioethers.
J. Amer. Chem.
Soc., 94, 3107 (1972)
By M. Katoh, D. A. Jaeger and C. Djerassi.
756. Mass Spectrometry in
Structural and Stereochemical Problems CCXIV. Induced Fragmentation of Simple
Acetylenes.
J. Amer. Chem.
Soc., 94, 3115 (1972)
By P. D. Woodgate, K. K. Mayer and C. Djerassi.
757. Mass Spectrometry in
Structural and Stereochemical Problems CCXVIII. The Electron Impact Induced
Behavior of Terpenoid Esters of the Juvenile Hormone Class.
J. Org. Chem., 37,
2111 (1972)
By R. J. Liedtke and C. Djerassi.
758. A. New Sterol from an
Alcyonarian.
Steroids, 20,
121 (1972)
By J. P. Engelbrecht, B. Tursch and C. Djerassi.
759. Birth Control after
1984: A Realistic Appraisal of Future Contraceptive Developments (modified
version of No. 706).
Chapter 5 in
"Are Our Descendants Doomed?"
H. Brown and E. Hutchings, ed., Viking Press, New York, 1972
By C. Djerassi.
759a. Birth Control
after 1984 (see No. 706).
Reprinted in
"Chemistry and Society" (Ed. by M. M. MacDonald and R. E. Davis),
Willard Grant Press, Boston, 1972, pp. 212-242.
By C. Djerassi.
760. Applications of
Artificial Intelligence for Chemical Inference VIII. An Approach to the
Computer Interpretation of the High Resolution Mass Spectra of Complex
Molecules. Structure Elucidation of Estrogenic Steroids.
J. Amer. Chem.
Soc., 94, 5962 (1972)
By D. H. Smith, B. G. Buchanan, R. S. Engelmore. A. M. Duffield, A. Yeo, E. A.
Feigenbaum, J. Lederberg and C. Djerassi.
761. Magnetic Circular
Dichroism Studies XVIII. Structure
and the MCD of Saturated Ketones.
J. Amer. Chem.
Soc., 94, 6464 (1972)
By L. Seamans, A. Moscowitz, G. Barth, E. Bunnenberg and C. Djerassi.
762. Magnetic Circular
Dichroism Studies XIX. The
Determination of the Tyrosine:Tryptophan Ratio in Proteins.
Anal. Biochem., 48,
471 (1972)
By G. Barth, E. Bunnenberg and C. Djerassi.
763. Magnetic Circular
Dichroism Studies XX. A Study on Purified Bovine APO-Erythrocuprein.
Biochem.
Biophys. Acta, 278, 28 (1972)
By U. Weser, G. Barth, C. Djerassi, H. J. Hartmann, P. Krauss, G. Voelcker, W.
Voelter and W. Voetsch.
764. 5α-Cholesta-9(11),17(20),24-Triene-3β,6α-Diol,
A Minor Genin from the Starfish Acanthaster Planci.
Tetrahedron
Letters, 3721 (1972)
By Y. M. Sheikh, B. Tursch and C. Djerassi.
765. Magnetic Circular
Dichroism Studies XXIII. Magnetic Circular Dichroism Spectra of Indole
Alkaloids.
Hely. Chim.
Acta, 55, 2168 (1972)
By G. Barth, R. E. Linder, E. Bunnenberg and C. Djerassi.
766. Mass Spectrometry in
Structural and Stereochemical Problems CCXVII. Electron Impact Promoted Fragmentation
of 0-Methyl Oximes of Some α,β-Unsaturated Ketones and Methyl
Substituted Cyclohexanones.
Can. J. Chem., 50,
2776 (1972)
By Y. M. Sheikh, R. J. Liedtke, A. M. Duffield and C. Djerassi.
767. Genetic Engineering -
Probabilities and Practicalities.
Science and Public Affairs, Bulletin of Atomic Scie