Diels−Alder Cycloaddition Strategy for Kinetic Resolution of Chiral Pyrazolidinones
作者:Mukund P. Sibi、Keisuke Kawashima、Levi M. Stanley
DOI:10.1021/ol901504p
日期:2009.9.3
A rare example of the application of a catalytic, enantioselective Diels−Aldercycloaddition to affect a kinetic resolution has been developed. Chiral pyrazolidinones are resolved with high selectivity through a process that utilizes a relay of stereochemical information from a permanent chiral center to a fluxional chiral center to enhance the inherent selectivity of the chiral Lewis acid catalyst