Preparation of Diglycolamides via Schotten–Baumann Approach and Direct Amidation of Esters
作者:Willem Verboom、Andrea Leoncini、Jurriaan Huskens
DOI:10.1055/s-0035-1561495
日期:——
Diglycolyl chlorides, commercially available or obtained from the corresponding dicarboxylic acids, have been converted into the corresponding diamides by reaction with a wide range of amines in an organic-aqueous biphasic system (Schotten–Baumann approach) in high yields. Treatment with poly(4-styrenesulfonic acid) afforded the pure compounds. Substituted diglycolyl diesters, obtained by coupling
通过在有机-水双相体系(Schotten-Baumann 方法)中与多种胺反应,可以将二甘醇氯化物(市售的或从相应的二羧酸获得)转化为相应的二酰胺。用聚(4-苯乙烯磺酸)处理得到纯化合物。通过偶联商业单酯获得的取代的二甘醇二酯在作为催化剂的三氯化铝存在下以良好的产率直接转化为相应的二酰胺。