Ruthenium-Catalyzed Regioselective C2 Alkenylation of Indoles and Pyrroles via C-H Bond Functionalization

An efficient ruthenium-catalyzed oxidative coupling of indoles and pyrroles with various alkenes at the C2-position assisted by employing the N,N-dimethylcarbamoyl moiety as a directing group is reported. The catalytic reaction proceeds in an excellent regio- and stereoselective manner.