Asymmetric α-Amination Reaction of Alkenoate Cyclic Esters Catalyzed by Chiral Tin Alkoxides
作者:Akira Yanagisawa、Yoshiki Yamashita、Chika Uchiyama、Ryuta Nakano、Moe Horiguchi、Kazuki Ida
DOI:10.1055/s-0037-1612278
日期:2019.4
α-amination reaction of alkenoate cyclic esters with dialkyl azodicarboxylates was achieved by using a 3,3′-di(1-naphthyl)-substituted (R)-BINOL–dibromostannane complex as a chiral precatalyst in the presence of a sodium alkoxide and an alcohol. Optically active α-hydrazino ketones were obtained in moderate to high yields and with up to 91% ee in the presence of the chiral tin alkoxide generated in