Asymmetric Intramolecular Oxa-Michael Addition of Activated alpha,beta-Unsaturated Ketones Catalyzed by a Chiral N,N '-Dioxide Nickel(II) Complex: Highly Enantioselective Synthesis of Flavanones

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

WILEY-V C H VERLAG GMBH

1. National Natural Science Foundation of China [20732003]
2. Ministry of Education [20070610019]