反应详情

Under ice cooling, 7.77g (31.5 mmol) of m-chloroperbenzoic acid was added little by little to a solution of 7.63 g (30 mmol) of 2-(trifluoromethylthio)biphenyl in 20 ml of methylene chloride with stirring. The mixture was stirred overnight at room temperature. The precipitate in the reaction mixture was removed by filtration, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:10) to give 7.93 g (97.8%) of 2-(trifluoromethylsulfinyl)biphenyl. The properties of the product were as shown below.

1. stirringThe mixture was stirred overnight at room temperature
2. customThe precipitate in the reaction mixture was removed by filtration
3. concentrationthe filtrate was concentrated under reduced pressure
4. customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:10)