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Metal‐Free C–H Sulfonamidation of Pyrroles by Visible Light Photoredox Catalysis

Meyer, Andreas Uwe ; Berger, Anna Lucia ; König, Burkhard


We report a one-step procedure for the preparation of N-(2-pyrrole)-sulfonamides from sulfonamides and pyrroles. The reaction uses visible light, an acridinium dye as photocatalyst and oxygen as the terminal oxidant for the oxidative C–N bond formation; structures of several reaction products were confirmed by X-ray structure analysis. The reaction is selective for pyrroles, due to the available ...


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