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The difunctionalization of unactivated alkenes has widespread applications in organic synthesis. However, the selective introduction of two different functional groups remains challenging. We herein report a photoelectrochemical chlorothiocyanation of unactivated alkenes via an Fe-catalyzed ligand-to-metal charge transfer (LMCT) process. The generation of electrophilic thiocyanate radical from an Fe III –SCN complex under mild LMCT conditions is realized for the first time. This protocol provides a platform to install two versatile functional groups (SCN and Cl) selectively with a broad substrate scope.
Zhang et al. (Mon,) studied this question.