Efficient Transfer of Chelating Amides into Different Types of Esters and Lactones
作者:Uwe Jakob、Stephan Mundinger、Willi Bannwarth
DOI:10.1002/ejoc.201402843
日期:2014.11
corresponding esters despite the fact that the former are thermodynamically more stable. The transformations are mediated by the coordination of CuI by a chelating entity. The resulting weakening of the amide bond allows for nucleophilicattack by alcoholic hydroxyl functions. The principle is demonstrated for a wide variety of transformations, leading to different kinds of esters and lactones.
我们描述了一种将羧酸酰胺转化为其相应酯的通用方法,尽管前者在热力学上更稳定。转化是由螯合实体协调 CuI 介导的。由此产生的酰胺键弱化允许醇羟基官能团进行亲核攻击。该原理适用于各种转化,导致产生不同种类的酯和内酯。
Julia; Rouault, Bulletin de la Societe Chimique de France, 1959, p. 1833,1839