Stereospecific Alkyl and Alkynyl Substitution Reactions of Epoxy Sulfides with Organoaluminums with Double Inversion of the Configuration
作者:Minoru Sasaki、Keiji Tanino、Masaaki Miyashita
DOI:10.1021/jo010240c
日期:2001.8.1
A regioselective and stereospecific substitution reaction of 1-(phenylthio)-2,3-epoxyalkanes was achieved by using organoaluminum reagents as a nucleophile. Under the influence of trimethyl- or triethylaluminum, a 1-(phenylthio)-2,3-epoxyalkane underwent substitution at the C2 position to give a product with retention of the configuration. The reaction proceeds through an episulfonium ion intermediate