Reaction of di(bromomagnesio)alkanes with unsymmetrically substituted cyclic anhydrides
作者:Persephone Canonne、Gilles Lemay、Denis Bélanger
DOI:10.1016/s0040-4039(00)93679-7
日期:1980.1
Alkylated γ-spirolactones were prepared in one-step reactions in high yields from butane-1,4-diyl and pentane-1,5 diyldimagnesium dibromides and substituted cyclicanhydrides in tetrahydrofuran. In the light of experimental findings electronic and steric factors influence the regiospecificity of this reaction.