Cu(OTf) 2 and N-Sulfinylprolinamide Catalyzed Friedel-Crafts Reaction of Indoles with N-Sulfonylaldimines
Liu Haihua, Zhang Donghua, Wang Xiahui, Meng Weidong, Huang Yangen
Chin. J. Org. Chem. . 2016, (6): 1351 -1358 .  DOI: 10.6023/cjoc201601025