反应详情

温度

50 °C

Methyl 4-butyrylbenzoate (256.1 mg, 1.242 mmol) was dissolved in tetrahydrofuran (3 mL) and methanol (3.0 mL). 1N aqueous sodium hydroxide (3.73 mL) was added and the reaction mixture was heated to 50° C. for 3 h. The reaction mixture was then cooled to room temperature and concentrated. The crude residue was taken up in water and acidified to pH 5 by addition of 1N aqueous HCl. A colorless precipitate formed. The solids were filtered off and dried under vacuum to give 4-butyrylbenzoic acid (155.4 mg, 65%) as a colorless solid.

1. temperatureThe reaction mixture was then cooled to room temperature
2. concentrationconcentrated
3. additionacidified to pH 5 by addition of 1N aqueous HCl
4. customA colorless precipitate formed
5. filtrationThe solids were filtered off
6. customdried under vacuum