A new route for the conversion of carvone into eudesmane sesquiterpenes
作者:Drury Caine、Bruce Stanhope
DOI:10.1016/s0040-4020(01)87736-x
日期:1987.1
The β-hydroxy-α-phenylsulfenyl ketone 2, derived from S-(+)-carvone, was treated with 2 equivalents of the Wittig-Horner phosphine oxide derivative 6 followed by excess methyl iodide to give a ca. 2 : 3 mixture of the E and Z α-phenylsulfenyl ketones 3a and 3b. The mixture of sulfides was oxidized to the corresponding sulfoxides 3c,d with m-chloroperbenzoic acid. When this mixture refluxed in benzene
Sesquiterpenes from the essential oil of the liverwort Conocephalum conicum
作者:Stephanie Melching、Wilfried A König
DOI:10.1016/s0031-9422(98)00769-9
日期:1999.6
Abstract Three new brasilane type sesquiterpenes related to the known alcohol conocephalenol and the sesquiterpene alcohol presilphiperfolan-1-ol were isolated from a chemotype of the liverwort Conocephalumconicum collected in southern Germany and identified by NMR investigations, enantioselective gas chromatography and chemical correlations. In addition ent -(−)-dactylol, the enantiomer of a compound
Stereochemical aspects of the reaction of lithio(1-methyl-2-propenyl)diphenylphosphine oxide with .beta.-substituted aldehydes. Short syntheses of (-)-.alpha.-selinene and (+)-.alpha.-helmiscapene
作者:Drury Caine、Bruce Stanhope、Stacey Fiddler
DOI:10.1021/jo00252a051
日期:1988.8
The chemistry of thujone. X. Thujone as a chiral synthon for the preparation of sesquiterpenes. Synthesis of (+)-α-eudesmol and (−)-α-selinene
作者:James P. Kutney、Ashok K. Singh
DOI:10.1139/v84-239
日期:1984.8.1
Efficient synthetic routes to the chiral sesquiterpenes (+)-α-eudesmol (7) and (−)-α-selinene (9) from a thujone-derived intermediate (2) are described.