Abstract
AbstractA copper‐catalyzed regioselective sulfenylation of indoles and a pyrrolo[2,3‐b]pyridine with arylsulfonyl chlorides has been developed by using low loadings of a copper catalyst and the cheap reductant PPh3. This method is effective for both N‐protected and unprotected indoles, providing a series of structurally diverse indole thioethers in good to excellent yields with extremely high regioselectivity.
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