反应详情

To the mixture of 2-hydroxybenzonitrile (40 g, 0.34 mol) and potassium carbonate (51.6 g, 0.374 mol) in 850 mL of acetone was added methyl bromoacetate (51.7 g, 0.34 mol) slowly at room temperature. After being stirred at room temperature overnight, the solid was filtered off. The filtrate was concentrated under reduced pressure and the residue was dissolved in ethyl acetate. The organic layer was washed with water then brine, dried over sodium sulfate, filtered and concentrated under reduced pressure to give a residue which was recrystallized in methanol to give 40 g of product as a white solid.

1. filtrationthe solid was filtered off
2. concentrationThe filtrate was concentrated under reduced pressure
3. dissolutionthe residue was dissolved in ethyl acetate
4. washThe organic layer was washed with water
5. dry with materialbrine, dried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated under reduced pressure
8. customto give a residue which
9. customwas recrystallized in methanol