Direct Cross‐Coupling of C-H Bonds with Grignard Reagents through Cobalt Catalysis

Abstract
Go go Grignard! The first highly regioselective, cobalt‐catalyzed CH transformation of benzo[h]quinoline and phenylpyridine derivatives with Grignard reagents at room temperature has been achieved (see scheme). Both aryl and alkyl Grignard reagents showed significant reactivity.