[2591197-36-1] C9H13CuF3N4O4S (MW 392.9906) InChI = 1S/2C4H6N2.CHF3O3S.Cu.H2O/c2*1-6-3-2-5-4-6;2-1(3,4)8(5,6)7;;/h2*2-4H,1H3;(H,5,6,7);;1H2/q;;;+2;/p-2 InChIKey = NJJBUHJZUCPMCG-UHFFFAOYSA-L (reagent used for the oxidative coupling and phenol oxidation) Solubility: soluble in methanol, tetrahydrofuran, ethyl acetate, N,N-dimethylformamide, dichloromethane, and petroleum ether. Preparative Method: a mixture of (trifluoromethylsulfonyloxy)copper(I) (200 mg, 0.94 mmol, 1.0 equiv) and 1-methylimidazole (0.15 mL, 1.88 mmol, 2.0 equiv) in 95% methanol aqueous solution (5 mL) was stirred under oxygen atmosphere at room temperature for 2 h. The resulting precipitate was collected by centrifuge after tert-butyl methyl ether (20 mL) was added into the mixture. Drying in vacuum gave a yellow powder which was used as an oxidant. Handling, Storage, and Precautions: should be stored in a dry, dark, and cold place. Not to be exposed to reducing reagents, acids, or bases.