Abstract

AbstractA method for electrophilic C−H sulfenylation by deoxygenative reduction from less expensive and easily available sulfonic anhydrides is reported. This C−S bond‐forming reaction allows a general access to sulfenyl electrophiles, including important trifluoromethyl, perfluoroalkyl and aryl derivatives that are otherwise difficult to afford. Under metal‐free conditions, the reaction yielded 3‐arylthio (Fluoroalkylthio) indoles in good to excellent yields. The catalytic technique tolerates a wide range of functional groups.

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