Ag‐, Au‐, and Pt‐Catalyzed CH Functionalization

Abstract This article summarizes the recent advances in Ag‐, Au‐, and Pt‐catalyzed CH functionalizations. First, a systemic collection of Ag‐catalyzed CH functionalization reactions classified into CspH, Csp 2 H, and Csp 3 H functionalizations is presented. These reactions proceed through nitrene transfer, carbene transfer, radical intermediacy, or other pathways. Some mechanistic discussions on selected transformations are provided, especially for the radical processes. Next, gold‐catalyzed CH reactions starting with Csp 3 H functionalization are described. Early gold‐catalyzed CH functionalization processes often involved nitrene transfer, carbene transfer, or redox processes. The mechanistic aspects of gold‐catalyzed reactions involving novel intermediates are also discussed. Finally, a survey of Pt‐catalyzed CH functionalization reactions, albeit limited in examples when compared to Ag‐ and Au‐catalyzed processes, is provided.