Regio-and stereospecific cleavage of stannylepoxides iwth lithium phenylsulfide

摘要

Unsubstituted and #alpha# or #beta# C-substituted epoxystannanes react with lithium phenylsulfide togive regio-and stereodefined #alpha#-phenylthio-#beta#-hydroxystannanes resulting from #alpha#-or #beta#-silylated vinylsulfides formed by nucleophilic attack at the carbon which bears the tin group and subsequent syn-elimination of HOSnBu_3.Both types of products are interesting synthons in organic chemistry.