Synthesis of Oxindoles through the Gold‐Catalyzed Oxidation of <i>N</i>‐Arylynamides

Abstract

Abstract α‐Oxo gold carbenoids generated by the oxidation of N ‐arylynamides can be trapped intramolecularly at the ortho position of the aryl ring to give functionalized oxindoles under mild reaction conditions. Pyridine N ‐oxide works as the oxidant, ligand, and base in this transformation.