Hydrogen Peroxide → HCID 21099505, compound

Participants

Reaction Steps

To a solution of 4-({4-[(E)-2-(2,4-difluorophenyl)vinyl]phenyl}sulfonyl)benzonitrile (Example 53, 50 mg, 0.13 mmol) in dimethylsulfoxide (1.3 mL) was added potassium carbonate (9 mg, 0.07 mmol) in water (0.65 mL) and the reaction stirred for 5 minutes. Hydrogen peroxide (0.06 mL) was added and the reaction stirred for 2 hours. Saturated aqueous sodium sufite solution was added and the products extracted into ethyl acetate. The organic layer was dried over Na2SO4 and evaporated in vacuo. The residue was purified by flash column chromatography on silica, eluting with ethyl acetate, to give the title compound as a white solid (51 mg, 98%). (400 MHz, d6 DMSO): 8.15 (1H, s), 8.03 (4H, s), 7.96 (2H, d, J=8.5 Hz), 7.84 (3H, d, J=8.6 Hz), 7.61 (1H, s), 7.39 (2H, d, J=7.2 Hz), 7.33-7.27 (1H, m), 7.15 (1H, td, J=2.3, 8.6 Hz).

Provenance & Evidence