Conjugate addition of organocopper reagents in dichloromethane to α,β-unsaturated esters
作者:Jingyue Yang、Gregory B. Dudley
DOI:10.1016/j.tetlet.2007.08.105
日期:2007.10
Organocopper reagents in conjunction with Lewis acid activators provide greater stability than traditional cuprate reagents while maintaining the reactivity needed for conjugate addition reactions in dichloromethane. Whereas cuprates engage in cross-coupling pathways, organocopper nucleophiles are more selective for conjugate addition. The utility of organocopper reagents in dichloromethane for the
有机铜试剂与路易斯酸活化剂的结合提供了比传统铜酸盐试剂更高的稳定性,同时保持了二氯甲烷中共轭加成反应所需的反应性。铜酸盐参与交叉偶联途径,而有机铜亲核试剂对缀合物的添加更具选择性。本文进一步扩展了有机铜试剂在二氯甲烷中用于缀合至α,β-不饱和酯的用途。