Cu(0)@Al 2 O 3 /SiO 2 NPs: an efficient reusable catalyst for the cross coupling reactions of aryl chlorides with amines and anilines

The C–N cross coupling reaction of aryl chlorides with various alkyl/aryl amines catalyzed by copper nanoparticles impregnated on alumina/silica support (Cu(0)@Al 2 O 3 /SiO 2 ) was investigated and the catalyst showed excellent reactivity and efficacy.