Abstract
AbstractAlumina‐supported copper sulfate efficiently catalyzes the S‐arylation of aromatic, heteroaromatic and aliphatic thiols with aryl as well as heteroaryl halides under aerobic, ligand‐free conditions. This protocol provides an easy access to a variety of thioethers as well as unsymmetrical bis‐thioethers by base‐controlled differential coupling of thiols with iodo‐ and bromo‐substituents in an aromatic halide. The catalyst is inexpensive, non‐air sensitive, environmentally friendly and recyclable.
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