Electrochemical oxidative C-H/N-H cross-coupling for C-N bond formation with hydrogen evolution.

摘要: Under metal catalyst-free and exogenous-oxidant-free conditions, a series of C-3 aminated imidazo[1,2-a]pyridines were synthesized by electrochemical intermolecular oxidative C–H/N–H cross-coupling. Furthermore, using catalytic amount ferrocene as the mediator, intramolecular cross-coupling for synthesis 10H-benzo[4,5]imidazo[1,2-a]indole derivatives has also been accomplished.