Friedel-Crafts Reaction of Indoles with N-Sulfonyl Imines Catalyzed by H 3PW 12O 40
Hui Yonghai, Wang Changchun, Shi Wei, Meng Hua, Xie Zhengfeng
Chin. J. Org. Chem. . 2014, (5): 898 -902 .  DOI: 10.6023/cjoc201311014