Synthesis of 2,3'-Bisindole Derivatives Catalyzed by TfOH
Zhang Lüye, Wu Binqiang, Chen Zhangtao, Hu Jinjin, Zeng Xiaofei, Zhong Guofu
Chin. J. Org. Chem. . 2018, (8): 2028 -2035 .  DOI: 10.6023/cjoc201803036