Enantioselective Addition of Boronates to Acyl Imines Catalyzed by Chiral Biphenols
作者:Joshua A. Bishop、Sha Lou、Scott E. Schaus
DOI:10.1002/anie.200901023
日期:2009.6.2
On the big screen: A chiralbiphenol catalyst screening protocol was developed for the rapid identification of enantioselective nucleophilic boronate reactions with acylimines (see scheme). The approach successfully identified a unique catalyst for the reaction of aryl, vinyl, and alkynyl boronates. Mechanistic studies demonstrate boronate ligand exchange with the catalyst is necessary for activation