反应详情

3-(Trifluoromethyl)-benzoyl chloride (5 mL, 332 mmol), N,O-dimethyl-hydroxylamine hydrochloride (42 g, 431 mmol) and methylene chloride were combined under argon, then cooled in an ice bath. Triethylamine (108 mL, 775 mmol) was added dropwise with stirring over 0.5 h. The contents of the reaction flask were then warmed to room temperature slowly. After 18 h, the reaction suspension was washed successively with 5% potassium bisulfate, sat. sodium bicarbonate and brine. The organic layer was dried over anhydrous sodium sulfate then concentrated in vacuo to give Compound 1 as an oil: 82 g, (332 mmol, 100%)

1. temperaturecooled in an ice bath
2. waitAfter 18 h
3. washthe reaction suspension was washed successively with 5% potassium bisulfate, sat. sodium bicarbonate and brine
4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
5. concentrationthen concentrated in vacuo