Visible light-promoted NH-halogenation of sulfoximines with dichloromethane or dibromomethane

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.

Automated summary

In this study, dichloro- and dibromomethane were utilized as halogen sources to convert NH-sulfoximines to N-halo derivatives, using an in situ formed sulfoximidoyl-containing hypervalent iodine reagent under visible light. The reactions were carried out in air without the need for catalysts or additives, and the products were obtained in good to excellent yields.