Kusuda Shinya, Ueno Yoshio, Toru Takeshi, Tetrahedron, 50 (1994) N 4, S 1045-1062
作者:Kusuda Shinya, Ueno Yoshio, Toru Takeshi
DOI:——
日期:——
Vinyl anion equivalent V. Asymmetric synthesis of allylic alcohols using chiral 2-(trialkylsilyl)ethyl sulfoxides
作者:Shinya Kusuda、Yoshio Ueno、Takeshi Toru
DOI:10.1016/s0040-4020(01)80816-4
日期:1994.1
Both enantiomers of optically pure secondary allylic alcohols can be conveniently prepared by the diastereoselective reaction of the α-sulfinyl carbanion of p-tolyl 2-(trialkylsilyl)ethyl sulfoxides or tert-butyl 2-(trimethylsilyl)ethyl sulfoxide with aldehydes followed by either fluoride-induced desilylsulfinylation or thermal elimination of the sulfinyl group.
Preparation of Optically Pure Propargylic and Allylic Alcohols from 2-(Trimethylsilyl)vinyl Sulfoxides as a Chiral Ethynyl Anion Synthon: Computational Studies on Elimination Reaction of 2-(Trimethylsilyl)vinyl Sulfoxides
The reaction of the alpha-carbanion derived from (trimethylsilyl)vinyl sulfoxides with aldehydes afforded a diastereomeric mixture of the products. Each diastereomer was subjected to specific elimination reactions to give optically pure propargylic, trimethylsilylated propargylic, and allylic alcohols. Acceleration of the sulfenic acid-elimination from the beta-silylvinyl sulfoxide was demonstrated