630 results on '"Djerassi, C."'
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152. ChemInform Abstract: MASS SPECTROMETRY IN STRUCTURAL AND STEREOCHEMICAL PROBLEMS. 247. ELECTRON-IMPACT INDUCED FRAGMENTATION OF ALLENES
153. ChemInform Abstract: TERPENOIDS PART 70, THE STRUCTURE OF THE SEA CUCUMBER SAPOGENIN HOLOTOXINOGENIN
154. ChemInform Abstract: Magnetic Circular Dichroism. Part 65. Sign Variation in the Magnetic Circular Dichroism Spectra of Free‐Base Porphyrins Having a Single n‐Acceptor Pyrrole Ring Substituent. Structure Implications
155. ChemInform Abstract: ISOLATION, STRUCTURE ELUCIDATION AND PARTIAL SYNTHESIS OF XESTOSTEROL, BIOSYNTHETICALLY SIGNIFICANT STEROL FROM THE SPONGE XESTOSPONGIA MUTA
156. ChemInform Abstract: SYNTHESIS OF FICISTEROL. THE FIRST NATURAL STEROL WITH 23‐ETHYL SUBSTITUTION
157. ChemInform Abstract: Mass Spectrometry in Structural und Stereochemical Problems. Part 266.
158. ChemInform Abstract: MINOR AND TRACE STEROLS IN MARINE INVERTEBRATES. 26. ISOLATION AND STRUCTURE ELUCIDATION OF NINE NEW 5α,8α‐EPIDOXY STEROLS FROM FOUR MARINE ORGANISMS
159. ChemInform Abstract: MINOR AND TRACE STEROLS IN MARINE INVERTEBRATES. PART 35. ISOLATION AND STRUCTURE ELUCIDATION OF SEVENTY‐FOUR STEROLS FROM THE SPONGE AXINELLA CANNABINA
160. ChemInform Abstract: OPTICAL ROTATORY DISPERSION STUDIES. 135. SYNTHESIS AND CHIROPTICAL PROPERTIES OF (S)‐ AND (R)‐(3‐2H1)‐2,2‐DIMETHYLCYCLOBUTANONE. EVIDENCE FOR CONFORMATIONAL EFFECTS IN SUBSTITUTED CYCLOBUTANONES
161. ChemInform Abstract: MAGNETIC CIRCULAR DICHROISM STUDIES. 59. SUBSTITUENT-INDUCED SIGN VARIATION IN THE MAGNETIC CIRCULAR DICHROISM SPECTRA OF CHLORINS
162. ChemInform Abstract: MASS SPECTROMETRY IN STRUCTURAL AND STEREOCHEMICAL PROBLEMS PART 238, THE EFFECT OF HETEROATOMS UPON THE MASS SPECTROMETRIC FRAGMENTATION OF CYCLOHEXANONES
163. ChemInform Abstract: SYNTHESIS OF CHOLEST‐5‐ENE‐3β,11α15β‐TRIOL‐7‐ONE. A MODEL FOR THE STEROID NUCLEUS OF OOGONIOL, A SEX HORMONE OF THE WATER MOLD ACHLYA
164. ChemInform Abstract: APPLICATIONS OF ARTIFICIAL INTELLIGENCE FOR CHEMICAL INFERENCE. 33. COMPUTER-ASSISTED ELUCIDATION OF MOLECULAR STRUCTURE WITH STEREOCHEMISTRY
165. ChemInform Abstract: Evidence of Tautomerism in a Triply ′SN Labeled Monoacetylporphyrin in NMR: Kinetic HH/HD Isotope Effects and Thermodynamics in CD2Cl2(rate and equilibrium constants).
166. ChemInform Abstract: MAGNETIC CIRCULAR DICHROISM STUDIES. 60. SUBSTITUENT-INDUCED SIGN VARIATION IN THE MAGNETIC CIRCULAR DICHROISM SPECTRA OF REDUCED PORPHYRINS. 1. SPECTRA AND BAND ASSIGNMENTS
167. ChemInform Abstract: MASS SPECTROMETRY IN STRUCTURAL AND STEREOCHEMICAL PROBLEMS. 257. EFFECT OF ADDITIONAL DOUBLE BONDS ON THE MASS SPECTROMETRIC FRAGMENTATIONS OF Δ4‐3‐KETO STEROIDS
168. ChemInform Abstract: MINOR AND TRACE STEROLS IN MARINE INVERTEBRATES. 27. ISOLATION, STRUCTURE ELUCIDATION, AND PARTIAL SYNTHESIS OF 25‐METHYLXESTOSTEROL, A NEW STEROL ARISING FROM QUADRUPLE BIOMETHYLATION IN THE SIDE CHAIN
169. ChemInform Abstract: APPLICATIONS OF ARTIFICIAL INTELLIGENCE FOR CHEMICAL INFERENCE. XXI. CHEMICAL L STUDIES OF MARINE INVERTEBRATES. XVII. THE COMPUTER-ASSISTED IDENTIFICATION N OF (+)-PALUSTROL IN THE MARINE ORGANISM CESPITULARIA SP., AFF. SUBVIRIDIS
170. ChemInform Abstract: STEREOSPECIFIC CYCLOPROPANE RING‐OPENING OF PETROSTEROL. A POSSIBLE BIOMIMETIC PROCESS
171. ChemInform Abstract: SYNTHESIS OF CHIRAL CONFORMATIONALLY FIXED CYCLOHEXANONES
172. ChemInform Abstract: MINOR AND TRACE STEROLS IN MARINE INVERTEBRATES. 8. ISOLATION, STRUCTURE ELUCIDATION, AND PARTIAL SYNTHESIS OF TWO NOVEL STEROLS ‐ STELLIFERASTEROL AND ISOSTELLIFERASTEROL
173. ChemInform Abstract: CARBON‐13 NUCLEAR MAGNETIC RESONANCE SPECTRA OF MONOUNSATURATED STEROIDS. EVALUATION OF RULES FOR PREDICTING THEIR CHEMICAL SHIFTS
174. ChemInform Abstract: STEROLS WITH CYCLOPROPANE‐CONTAINING SIDE CHAINS: SYNTHESIS AND ACID ISOMERIZATION
175. ChemInform Abstract: MINOR AND TRACE STEROLS IN MARINE INVERTEBRATES. 31. ISOLATION AND STRUCTURE ELUCIDATION OF 23H-ISOCALYSTEROL, A NATURALLY OCCURRING CYCLOPROPENE. SOME COMPARATIVE OBSERVATIONS ON THE COURSE OF HYDROGENOLYTIC RING OPENING OF STEROIDAL
176. ChemInform Abstract: CIRCULAR DICHROISM OF MOLECULES WITH ISOTOPICALLY ENGENDERED CHIRALITY
177. ChemInform Abstract: Biosynthetic Studies of Marine Lipids. Part 5. The Biosynthesis of Long‐Chain Branched Fatty Acids in Marine Sponges.
178. ChemInform Abstract: SYNTHESIS AND BIOCHEMICAL SCREENING OF PHENYLSELENIUM‐SUBSTITUTED STEROID HORMONES
179. ChemInform Abstract: MASS SPECTROMETRY IN STRUCTURAL AND STEREOCHEMICAL PROBLEMS PART 234, ALKYL PYRIDYL KETONES
180. ChemInform Abstract: THE MECHANISM OF HYDRIDE REDUCTION OF 1‐ALKYN‐3‐OLS
181. ChemInform Abstract: FORMYLATION OF PYRROLE DERIVATIVES
182. ChemInform Abstract: MINOR AND TRACE STEROLS IN MARINE INVERTEBRATES. PART 20. 3Ξ‐HYDROXYMETHYL‐A‐NOR‐PATINOSTEROL AND 3Ξ‐HYDROXYMETHYL‐A‐NOR‐DINOSTEROL. TWO NEW STEROLS WITH MODIFIED NUCLEUS AND SIDE‐CHAIN FROM THE SPONGE TEICHAXINELLA MORCHELLA
183. ChemInform Abstract: STEREOCHEMICAL EFFECTS IN CYCLOPROPANE RING OPENINGS: BIOMIMETIC RING OPENINGS OF ALL ISOMERS OF 22,23‐METHYLENECHOLESTEROL ACETATE
184. ChemInform Abstract: MINOR AND TRACE STEROLS IN MARINE INVERTEBRATES. PART XI. 5α-24-NORCHOLESTAN-3β-OL AND (24Z)-STIGMASTA-5,7,24(28)-TRIEN-3β-OL, TWO NEW MARINE STEROLS FROM THE PACIFIC SPONGES TERPIOS ZETEKI AND DYSIDEA HERBACEA
185. ChemInform Abstract: STEREOCHEMICAL ASPECTS OF ACID-CATALYZED CYCLOPROPANE RING-OPENING REACTIONS. A STEREOSPECIFIC PATHWAY TO CRINOSTEROL AND BRASSICASTEROL
186. ChemInform Abstract: STEROLS IN MARINE INVERTEBRATES. 49. ISOLATION AND STRUCTURE ELUCIDATION OF EIGHT NEW POLYHYDROXYLATED STEROLS FROM THE SOFT CORAL SINULARIA DISSECTA
187. ChemInform Abstract: MAGNETIC CIRCULAR DICHROISM STUDIES. 49. STRUCTURAL-VIBRATIONAL EFFECTS IN MAGNETIC CIRCULAR DICHROISM SPECTRA
188. ChemInform Abstract: MASS SPECTROMETRY IN STRUCTURAL AND STEREOCHEMICAL PROBLEMS. 249. ELUCIDATION N OF THE COURSE OF THE CHARACTERISTIC RING D FRAGMENTATION OF UNSATURATED STEROIDS
189. ChemInform Abstract: APPLICATIONS OF ARTIFICIAL INTELLIGENCE FOR CHEMICAL INFERENCE. 22. AUTOMATIC C RULE FORMATION IN MASS SPECTROMETRY BY MEANS OF THE META-DENDRAL PROGRAM
190. ChemInform Abstract: MASS SPECTROMETRY IN STRUCTURAL AND STEREOCHEMICAL PROBLEMS. 250. CHARACTERISTIC FRAGMENTATIONS OF CHOLESTEROL ACETATE
191. ChemInform Abstract: STEROLS IN MARINE INVERTEBRATES. 22. ISOLATION AND STRUCTURE ELUCIDATION OF CONICASTEROL AND THEONELLASTEROL, TWO NEW 4‐METHYLENE STEROLS FROM THE RED SEA SPONGES THEONELLA CONICA AND THEONELLA SWINHOEI
192. ChemInform Abstract: APPLICATION OF ARTIFICIAL INTELLIGENCE FOR CHEMICAL INFERENCE. PART XLI. COMPUTER‐ASSISTED STRUCTURAL INTERPRETATION OF PROTON NMR SPECTRAL DATA
193. ChemInform Abstract: OPTICAL ROTATORY DISPERSION STUDIES. 128. OCTANT CONTRIBUTIONS OF METHYL GROUPS IN 4-TERT-BUTYLCYCLOHEXANONES
194. ChemInform Abstract: STEROLS IN MARINE INVERTEBRATES. 32. ISOLATION OF 3β‐(HYDROXYMETHYL)‐A‐NOR‐5α‐CHOLEST‐15‐ENE, THE FIRST NATURALLY OCCURRING STEROL WITH A 15‐16 DOUBLE BOND
195. ChemInform Abstract: MAGNETIC CIRCULAR DICHROISM STUDIES. 61. SUBSTITUENT‐INDUCED SIGN VARIATION IN THE MAGNETIC CIRCULAR DICHROISM SPECTRA OF REDUCED PORPHYRINS. 2. PERTURBED MOLECULAR ORBITAL ANALYSIS
196. ChemInform Abstract: MASS SPECTROMETRY IN STRUCTURAL AND STEREOCHEMICAL PROBLEMS. 254. ELUCIDATION N OF THE COURSE OF THE ELECTRON IMPACT INDUCED FRAGMENTATION OF α,β‐UNSATURATED 3‐KETO STEROIDS
197. ChemInform Abstract: STEROLS IN MARINE INVERTEBRATES. 33. STRUCTURE OF FIVE NEW 3β-(HYDROXYMETHYL)-A-NOR STERANES: INDIRECT EVIDENCE FOR TRANSFORMATION OF DIETARY PRECURSORS IN SPONGES
198. ChemInform Abstract: SYNTHESIS OF (23R)‐ AND (23S)‐METHYLCHOLESTEROL
199. ChemInform Abstract: Biosynthetic Studies of Marine Lipids. Part 14. 24(28)-Dehydroaplysterol and Other Sponge Sterols from Jaspis stellifera.
200. ChemInform Abstract: AN EXPISCATION OF STRUCTURAL‐VIBRATIONAL EFFECTS IN MAGNETIC CIRCULAR DICHROISM SPECTRA OF SATURATED KETONES
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