摘要:
Optically active isatin-derived N,0-aminals were obtained through the catalytic asymmetric addition of various alcohols to isatin-derived N-Boc ketimines. Using 2'-phenyl cinchonidine thiourea as the catalyst, adducts were obtained in 96% yield and with up to 92% ee. (C) 2015 Elsevier Ltd. All rights reserved.