A Simple and Efficient Copper(II) Complex as a Catalyst for <i>N</i>‐Arylation of Imidazoles

Abstract

Abstract Four inexpensive and air‐/moisture‐stable pyrrolecarbaldiminato‐Cu complexes 1 – 4 were synthesized and evaluated to be a novel class of catalysts for the N ‐arylation of imidazoles with aryl halides. A variety of aryl iodides, bromides and activated aryl chlorides underwent the coupling with imidazoles, promoted by the catalyst 4 , in moderate to good yields without the protection by an inert gas.