Use of 1-chlorovinyl p-tolyl sulfoxides as alkynylmagnesium chloride sources
作者:Koto Sekiguchi、Tsutomu Kimura
DOI:10.1016/j.tet.2023.133439
日期:2023.6
A method for generating alkynylmagnesium chlorides from 1-chlorovinyl p-tolyl sulfoxides and an isopropylmagnesium chloride–lithium chloride complex (turbo Grignard reagent) has been developed. The method consists of a sulfoxide/magnesium exchange reaction of 1-chlorovinyl p-tolyl sulfoxides and a turbo Grignard reagent, a Fritsch–Buttenberg–Wiechell rearrangement of the resulting magnesium alkylidene