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A number of pyrazole-derived dithioethers were prepared by the reaction of diisothiuronium salts and 2-(3,5-dimethylpyrazol-1-yl)ethanol tosylate in a basic aqueous solution. Diisothiuronium salts were prepared by the reaction of thiourea with alpha,omega-dibromoalkanes containing from three to twelve methylene groups. The use of these salts allowed in situ generation of dithiolate ions, thus eliminating the need to use hazardous dimercaptanes.

Synthesis of Pyrazole-Derived Dithioethers Using in situ Generation of Dithiolate-Ions