Chiral 1,1′‐binaphthylazepine‐derived amino alcohol catalyzed asymmetric aryl transfer reactions with boroxine as aryl source

Abstract

Using chiral 1,1'-binaphthylazepine-derived amino alcohol as catalyst, the direct addition of in situ prepared arylzinc (with triphenylboroxine as aryl source) to various aryl aldehydes can afford optically active diarylmethanols in high yields and enantioselectivities (up to 96%).