Tin‐Free Radical Allylation of <i>B</i>‐Alkylcatecholboranes

Abstract

Organoboranes, prepared in situ by hydroboration of olefins with catecholborane, are efficiently allylated with allyl sulfones by a radical fragmentation process (see scheme). This hydroallylation of alkenes proved to be general for a wide range of alkenes and allyl sulfones.