A simple and convenient methodology for the preparation of optically pure 2-amino-2-aryl-1,1-diphenylethanols is presented. Allylamine was found to produce the ring-opening of triaryloxiranes in a regioselective and a stereospecific fashion. Removal of the allyl protecting group provided the free 1,2-amino alcohols in enantiomerically pure form.
Synthesis of Heavily Substituted 1,2-Amino Alcohols in Enantiomerically Pure Form
J. Org. Chem. 2005, 70, 7426-7428.