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