Carbamoylimidazolium salts as diversification reagents: an application to the synthesis of tertiary amides from carboxylic acids
作者:Justyna A. Grzyb、Robert A. Batey
DOI:10.1016/j.tetlet.2003.08.026
日期:2003.9
preparation of tertiaryamides from carbamoylimidazolium salts and carboxylic acids is described. The transformation occurs at room temperature and under relatively mild conditions. The carbamoylimidazolium salts are obtained from the reaction of secondary amines with N,N′-carbonyldiimidazole, followed by methylation with methyl iodide. The utility of this reaction was demonstrated in the formation of Weinreb