Highly diastereo-/enantioselective Cu-catalyzed propargylic alkylations of propargyl acetates with cyclic enamines
作者:Cheng Zhang、Yun-Ze Hui、De-Yang Zhang、Xiang-Ping Hu
DOI:10.1039/c5ra25627e
日期:——
Highly diastereo- and enantioselective copper-catalyzed propargylic alkylations of propargylic acetates with morpholine-derived cyclic enamines for the construction of vicinal tertiary stereocenters have been developed. By the employment of a less sterically hindered chiral tridentate P,N,N-ligand, good to excellent diastereo- (up to >98 : 2 dr) and enantioselectivity (up to 99% ee) could be achieved