L-Tartaric Acid as a New Chiral Auxiliary for Asymmetric Synthesis of Piperazinones, Morpholinones, Dihydroquinoxalinones and Dihydrobenzoxazinones

E-mail: parkyong@konkuk.ac.krReceived July 19, 2012, Accepted August 10, 2012Key Words : Dynamic resolution, Nucleophilic substitution, Tartaric acid, Chiral auxiliary, Asymmetric syn-thesisDynamic resolution of α-haloacyl compounds in nucleo-philic substitution has been recently developed as an asym-metric synthetic method for α-substituted carboxylic acids.