Amidines for Versatile Cobalt(III)-Catalyzed Synthesis of Isoquinolines through C-H Functionalization with Diazo Compounds

A cobalt(III),-catalyzed C-H/N-H bond functionalization for the synthesis of 1-aniinoisoquincilines from aryl amidines and diazo compounds has been developed: The reaction proceeds under mild reaction conditions, obviates the need for oxidants, produces only N-2 and H2O as the byproducts, and features a broad substrate scope.