Copper(I)-Catalyzed, One-Pot Synthesis of Multisubstituted Indoles from 2-Iodoanilines and Ethyl Buta-2,3-dienoate - Wang, Xianxue; Liu, Jin; Guo, Han; Ma, Chao; Gao, Xiai; Zhou, Kang; Huang, Guosheng (Synthesis, 2012)