作者:Thomas B. Poulsen、Carlos Alemparte、Karl Anker Jørgensen
DOI:10.1021/ja0539847
日期:2005.8.24
based on organocatalysis has been developed. Using a commercially available organocatalyst we demonstrate a direct highly enantioselective allylic electrophilic functionalization of alkylidenecyanoacetates and malononitriles with azodicarboxylates. The reaction is broad in scope and proceeds in high yields and with enantioselectivities up to 99%. Furthermore, we demonstrate the synthetic utility of the