Cyanation of indoles with benzyl cyanide as the cyanide anion surrogate
作者:Lianpeng Zhang、Qiaodong Wen、Jisong Jin、Chen Wang、Ping Lu、Yanguang Wang
DOI:10.1016/j.tet.2013.03.089
日期:2013.5
A copper-mediated direct cyanation of indoles with benzyl cyanide as the cyanideanion surrogate has been achieved. The cascade reaction furnished 3-cyanoindoles under mild reaction conditions in good to excellent yields with various functional groups tolerance.
GaCl<sub>3</sub>-Catalyzed C–H Cyanation of Indoles with <i>N</i>-Cyanosuccinimide
作者:Xue Wang、Mohamed Makha、Shu-Wei Chen、Huaiji Zheng、Yuehui Li
DOI:10.1021/acs.joc.9b00416
日期:2019.5.17
An efficient GaCl3-catalyzed direct cyanation of indoles and pyrroles using bench-stable electrophilic cyanating agent N-cyanosuccinimide was achieved and afforded 3-cyanoindoles and 2-cyanopyrroles in good yields and excellent regioselectivities. Notably, this protocol exhibited high reactivity for unprotected indoles and was applicable to a broad range of indole and pyrrole substrates.