A chiral borane catalyzed asymmetric hydrosilylation of imines†
Abstract
An enantioselective hydrosilylation of imines was successfully achieved using a chiral borane catalyst generated by the in situ hydroboration of a binaphthyl-based chiral diene with Piers’ borane HB(C6F5)2 to furnish a variety of optically active amines in 70% to >99% yields and 44–82% ees.