New Effective Nickel(II) Catalysts for the Cross-coupling of an Aryl Grignard Reagent with Aryl Halide

Abstract It has been found that seventeen nickel complexes of the Ni–O4, Ni–S4, Ni–O2N2, Ni–O3N3, Ni–N4, Ni–N6, and Ni–(C5)2 types exhibit a high catalytic activity for the selective cross-coupling reaction of an aryl Grignard reagent with aryl iodide, which make possible the synthesis of unsymmetrical aromatics of a high purity and in a high yield.