Leuckart thiophenol reaction

The reaction provides a route to introduce Sulfur into aromatic rings. Products: Aryl Thiols and Aryl Thioethers. Cu(I) acts as a catalyst to facilitate the decomposition of the diazo intermediate. ==Applications==

Preparation of Aryl Thiols (Ar–SH): Important in Pharmaceuticals, Dyes, and Agrochemicals. Synthesis of Aryl Thioethers (Ar–S–Ar): Used in Polymers, Drugs, Materials Chemistry. Substitution of Diazonium salts with Sulfur groups, expanding the Sandmeyer-resembling transformations. ==References==