Efficient Copper-Catalyzed Coupling Reaction for the Synthesis of Benzo[4,5]imidazo[1,2- b]pyrazoles
Cui Tao, Li Congxiang, Li Ming, Wen Lirong
Chin. J. Org. Chem. . 2017, (6): 1487 -1493 .  DOI: 10.6023/cjoc201612029