Rh(III)-Catalyzed Direct ortho-Chalcogenation of Phenols and Anilines.

A highly efficient Rh(III)-catalyzed direct C-H chalcogenation of phenols and anilines has been achieved with the assistance of the 2-pyridyl group. The reaction features a broad substrate scope, good functional group tolerance, complete monothiolation selectivity, and easily removable directing group.