A novel method for the mild and selective amidation of diesters and the amidation of monoesters
作者:Zhenrong Guo、Eric D Dowdy、Wen-Sen Li、Richard Polniaszek、Edward Delaney
DOI:10.1016/s0040-4039(01)00079-x
日期:2001.3
The selective monoamidation of diesters and amidation of esters mediated by Lewis acids are described. The selective amidations of dimethyl pyridine-2,5-dicarboxylate (I) and dimethyl 2,3-indole-dicarboxylate (4) with primary and secondary amines mediated by MgCl2 or MgBr2 under mild conditions gave the corresponding ester-amides in high yield. (C) 2001 Published by Elsevier Science Ltd.