Palladium-Catalyzed, One-Pot, Three-Component Approach to α-Alkynyl Indoles from o-Bromo-(2,2-dibromovinyl)benzenes, Terminal Alkynes and Arylamines - Liang, Yun; Meng, Tianhao; Zhang, Hui-Jun; Xi, Zhenfeng (Synlett, 2011)