反应详情

Next, benzyl 5-hydroxymethyl-2-methoxybenzoate and 100 ml of methylene chloride were mixed and, after pyridine (660 ml, 8.16 mmol), acetic anhydride (460 ml, 4.88 mmol) and N,N-dimethylaminopyridine (25 mg, 0.205 mmol) were added under stirring and cooling with ice, the mixture was stirred overnight. The reaction mixture was washed with 1 mol/l hydrochloric acid, aqueous solution of sodium hydrogencarbonate and brine, then dried over anhydrous sodium sulfate and concentrated to obtain 1.27 g (99%) of the title compound as a colorless oil.

1. temperaturecooling with ice
2. stirringthe mixture was stirred overnight
3. washThe reaction mixture was washed with 1 mol/l hydrochloric acid, aqueous solution of sodium hydrogencarbonate and brine
4. dry with materialdried over anhydrous sodium sulfate
5. concentrationconcentrated