Reactions of Organocopper Species Generated by Copper(I) Alkoxide-promoted 1,3-Brook Type Rearrangement

摘要

The substitution of the silyl group in vinylsilanes by an allylic group proceeded when beta-triphenylsilyl allylic alcohols were treated with copper(I) tert-butoxide and allylic halides.In the absence of the halides,the Peterson elimination proceeded to give the corresponding allenes.These reactions are the first synthetic applications of 1,3 C~(sp2)-to-O silyl migration which provides a useful method for generation of vinyl anion equivalents.