The electrophilic character of carbenoïds can be activated by addition of organocopper reagents (RCu, R2CuM, or RCuZM), forming an unsymmetrical cuprate. Internal substitution of the carbenoïd halogen by the R group leads to a new alkylated unsymmetrical cuprate reagent. R can be primary, secondary, or tertiary alkyl, aryl, thiophenyl.
可以通过添加
有机铜试剂(RCu,R 2 CuM或RCu
ZM)激活碳烯化合物的亲电子特性,从而形成不对称的
铜酸盐。R基团对碳素卤素的内部取代产生了一种新的烷基化不对称
铜酸盐试剂。R可以是伯,仲或叔烷基,芳基,
噻吩基。