In visible light, dichloro- and dibromomethane are the halogen sources for converting NH-sulfoximines to their corresponding N-halo derivatives via an in situ formed sulfoximidoyl-containing hypervalent iodine reagent. The reactions proceed in air and are catalyst- and additive-free. The products are obtained in good to excellent yields.
C. Wang, P. Shi and C. Bolm, Org. Chem. Front., 2021, 8, 2919 DOI: 10.1039/D1QO00382H
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