N-Arylation Reaction of 2-Amino-N-phenylbenzamide with Phenyl Boronic Acid via Chan-Evans-Lam (CEL) Type Reaction Using Cu@Phen@MGO Catalyst

摘要

Cu@Phen@MGO catalyst was synthesized by the functionalization of magnetic graphene oxide (MGO) with phenanthroline type ligand. The catalyst was characterized by several characterization methods and used as an effective magnetic heterogeneous nanocatalyst for the N-arylation of 2-amino-N-phenylbenzamide. Cu@Phen@MGO catalyst showed very good efficiency in base-free Chan-Evans-Lam coupling of arylboronic acid with 2-amino-N-phenylbenzamide at room temperature. The products were obtained in high isolated yields. Easy recoverability of the catalyst by an external magnet, reusability up to six runs without significant loss of activity, and its well stability during the reaction are among the other highlights of this catalyst. [GRAPHICS] .