Regioselective C2-Sulfonylation of Indoles and Pyrroles via SO2 Insertions
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A molecular iodine-catalyzed three-component cascade reaction of indoles/pyrroles, anilines, and DABSO has been developed, providing C2-sulfonylated indoles/pyrroles in good to excellent yields. The transformation proceeds via the in situ generation of the ary... ...
