title: Gold-catalyzed oxidative couplings of two indoles with one aryldiazo cyanide under oxidant-free conditions.
abstract: Gold-catalyzed oxidative couplings of two indoles and one α-cyano gold carbene to form bis(indolyl)methane derivatives are described. Two different indoles are compatible with these reactions to provide reasonable yields. A plausible mechanism is postulated to rationalize the experimental data including product distributions, D2O labeling, and the significant effects of gold catalysts and cyano groups.
authors.affiliation: Department of Chemistry, National Tsing-Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan, Republic of China. rsliu@mx.nthu.edu.tw.
authors.forename: RahulKumar Rajmani
authors.initials: RR
authors.lastname: Singh
authors.forename: Rai-Shung
authors.initials: RS
authors.lastname: Liu