Metal-Free C–H Functionalization and Aromatization Sequence for the Synthesis of 1-(Indol-3-yl)carbazoles and Total Synthesis of 7-Bromo-1-(6-bromo-1<i>H</i>-indol-3-yl)-9<i>H</i>-carbazole
作者:Ganapathy Ranjani、Rajagopal Nagarajan
DOI:10.1021/acs.orglett.8b03848
日期:2019.2.1
An operationally simple, metal-free, cost-effective, and mild oxidative cross-coupling protocol for the synthesis of 1-indolyl tetrahydrocarbazoles to afford 1-(indol-3-yl)carbazoles is developed. N-Chlorosuccinimide is used as a mild oxidant for the functionalization of the 1-position of tetrahydrocarbazoles, aromatization of which furnished 1-(indol-3-yl)carbazoles in good to moderate yields without