Dynamic Kinetic Resolution of Azlactones Catalyzed by Chiral Brønsted Acids
作者:Guojian Lu、Vladimir B. Birman
DOI:10.1021/ol102736t
日期:2011.2.4
Chiral Brønstedacids have been shown for the first time to catalyze the dynamic kineticresolution of azlactones. 3,3′-Bis-(9-anthryl)-BINOL phosphoric acid 3c is particularly effective in the case of 4-aryl-substituted substrates, producing 85−92% ee’s.