Potassium Carbonate → 3-Cyano-4-[2-iodo-4-(trifluoromethyl)phenoxy]-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide

Participants

Reaction Conditions

Reaction Steps

To a suspension of potassium carbonate (0.850 g, 0.006150 mol) and 3-cyano-4-fluoro-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide (Preparation 65, 0.500 g, 0.001759 mol) in dimethyl sulfoxide (5.0 mL) was added 2-iodo-4-(trifluoromethyl)phenol (Preparation 224, 0.595 g, 0.002066 mol) and stirred at 80° C. under nitrogen for 16 hours. The reaction mixture was diluted with ethyl acetate (10.0 mL) and the organic phase was washed with saturated aqueous sodium chloride solution (2×10.0 mL), dried over sodium sulphate, filtered and concentrated in vacuo. The residue was triturated in ethyl acetate (5.0 mL) to yield title compound as a white solid, 560 mg, 58% yield.

Provenance & Evidence