Cellulose-supported copper(0) efficiently catalyzes the aza-Michael reaction of N-nucleophiles, such as amines and imidazoles with α,β-unsaturated compounds to produce the corresponding β-amino compounds and N-substituted imidazoles in excellent yields. The reactions are facile and the recovered catalyst is used for several cycles with consistent activity.
纤维素负载的零价
铜可高效催化亲核试剂(如胺和
咪唑)与α,β-不饱和化合物进行的aza-迈克尔反应,从而以优异的产率生成相应的β-
氨基酸化合物和N-取代
咪唑。这些反应操作简便,且回收的催化剂可在连续多个循环中保持一致的活性。