Copper-promoted late-stage glycosylsulfonylation of aryl iodide and bromide to access glycosyl aryl sulfones

Glycosyl aryl sulfones exhibit diverse biological activities. Herein, we developed a copper-promoted coupling strategy using glycosyl sodium sulfinates and aryl iodides or bromides, enabling efficient synthesis of carbohydrate-based sulfone with broad functional group compatibility. This method offers a versatile approach for the late-stage modification of bioactive molecules.