Rhodium(III)-Catalyzed Directed <i>ortho</i>-C–H Bond Functionalization of Aromatic Ketazines via C–S and C–C Coupling

Described herein is a convenient and efficient method for sulfuration and olefination of aromatic ketazines via rhodium-catalyzed oxidative C–H bond activation. A range of substituted substrates are supported, and a possible mechanism is proposed according to experimental results of kinetic isotopic effect, reversibility studies, and catalysis of rhodacycle intermediate <b>c1