Electrochemical Oxidative C—H Sulfenylation of Imidazopyridines with Hydrogen Evolution.

Summary of main observation and conclusion: Selective oxidative C—H sulfenylation of imidazopyridine heterocycles is achieved using an undivided electrolytic cell. The reaction avoids the use of stoichiometric amount of external chemical oxidant and produces hydrogen gas as the only byproduct. Both aryl and aliphatic thiols demonstrate good reactivity for C—S bond formation. This work describes an exogenous‐oxidant‐free C—H sulfenylation of imidazopyridines using an electrochemical oxidative protocol. [ABSTRACT FROM AUTHOR]