反应详情

1M Boron tribromide-dichloromethane solution (0.71 mL, 0.71 mmol) was added to a solution of N-[3,5-bis(trifluoromethyl)phenyl]-2-methoxy-4-phenylbenzamide (100 mg, 0.24 mmol) in dichloromethane (5 mL), and the mixture was stirred at room temperature for 1 hour. The reaction mixture was diluted with ethyl acetate, washed with water and brine, and dried over anhydrous magnesium sulfate. The residue obtained by evaporation of the solvent under reduced pressure was purified by column chromatography on silica gel (n-hexane:ethyl acetate=5:1) to give the title compound (69.3 mg, 71.6%) as a white powder.

1. washwashed with water and brine
2. dry with materialdried over anhydrous magnesium sulfate
3. customThe residue obtained by evaporation of the solvent under reduced pressure
4. customwas purified by column chromatography on silica gel (n-hexane:ethyl acetate=5:1)