Rhodium-Catalyzed Regioselective C–H Chlorination of 7-Azaindoles Using 1,2-Dichloroethane
2014
Qian, Guangyin | Hong, Xiaohu | Liu, Bingxin | Mao, Hong | Xu, Bin
An unexpected rhodium-catalyzed regioselective C–H chlorination of 7-azaindoles was developed using 1,2-dichloroethane (DCE) as a chlorinating agent and 7-azaindole as the directing group. This protocol provides an efficient access to ortho-chlorinated azaindoles with operational simplicity, good functional group tolerance, and a wide substrate scope.
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