Review of electrochemical transition‐metal‐catalyzed C−H functionalization reactions
Sumi Changmai, Sabera Sultana, Anil K. Saikia
Abstract
Abstract The combination of organometallic C−H activation and electro‐catalysis has emerged as a potent synthetic technique for various molecular scaffolds since it avoids the use of harmful and expensive chemical oxidants in stoichiometric amounts. Moreover, the pre‐functionalization of substrates is not required and newer ways to perform metal‐catalyzed C−H activation reactions are possible. Here, we have discussed eletrochemically driven C−H acyloxylation, acetoxylation, oxygenation, acylation, amination, alkylation, halogenation, olefinations and C−H/N−H annulation reactions using various transition‐metal‐catalyst such as Ru, Rh, Pd, Co, Ni, Ir, Cu, Mn and Au by anodic oxidation, followed by reductive elimination to form the corresponding C−O, C−C, C−N and C−X (X=Cl, Br, S etc.) bonds. This review covers recent developments in transition‐metal‐catalyzed electrochemical C−H activation from 2007 until 2022.