[TM] for the synthesis of cyclic and acyclic sulfides. Arylations with diaryliodonium salts generally suffer from poor atom economy as stoichiometric aryl iodide (ArI) is wasted, which is avoided in reactions with cyclic Ar2IX. Recent progress to meet this drawback includes transition metal-catalyzed one-pot methods where both aryl groups of acyclic diaryliodonium salts are transferred through in situ cross coupling with the formed ArI. Jiang and co-workers reported such a copper-catalyzed Sdiarylation with potassium thioacetate. Recently, the Olofsson group developed a sustainable and transition-metal free approach for diarylation of N-and O-nucleophiles using diaryliodonium salts under basic conditions, where both aryl groups and the iodide were retained in the product. The reaction was suggested to proceed through nucleophilic aromatic substitution (SNAr) followed by intramolecular aryl transfer to afford the diarylated product.