Ruthenium-Catalyzed C–H Bond Oxygenations with Weakly Coordinating Ketones ThirunavukkarasuVedhagiri S. AckermannLutz 2012 Ruthenium complexes enabled first C(sp<sup>2</sup>)–H bond oxygenations of aromatic ketones with excellent functional group tolerance, and broad scope as well as high chemoselectivity and site selectivity.