A new approach to large scale production of dimethyl sulfone: a promising and strong recyclable solvent for ligand-free Cu-catalyzed C–C cross-coupling reactions

Dimethyl sulfone (DMSN or MSM) was prepared<italic>via</italic>efficient oxidation of dimethyl sulfoxide and used and developed as an efficient, viscose, and recyclable solvent for ligand-free CuI-catalyzed Heck, Suzuki, and Sonogashira cross-coupling reactions.

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