Brønsted Acid-Catalyzed Substitution Reactions of 2-Indolyl-methanols with Tryptophols: Chemoselective Synthesis of 2,2'-Bisindolylmethanes
Mao Yujia, Lu Yinan, Li Tianzhen, Wu Qiong, Tan Wei, Shi Feng
Chinese Journal of Organic Chemistry . 2020, (11): 3895 -3907 .  DOI: 10.6023/cjoc202005096