Stereospecific synthesis of (E)-vinyl sulphides via 1-lodoalk-1-enyldialkylboranes
Abstract
Isomerically pure (E)-vinyl sulphides were obtained by reaction of 1-iodoalk-1-enylbis(1,2-dimethylpropyl)boranes successively with alkylthiomagnesium bromides, n-butyl-lithium, and aqueous sodium hydroxide.