反应详情

A mixture of 2-benzyloxy-5-hydroxybenzaldehyde (8.93 g), ethyl iodide (7.31 g), anhydrous potassium carbonate (5.40 g) and N,N-dimethylformamide (50 mL) was stirred at room temperature for 15 hrs. The reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The obtained residue was subjected to silica gel column chromatography to give 2-benzyloxy-5-ethoxybenzaldehyde as a colorless oil (9.25 g, 92%) from a fraction eluted with ethyl acetate-hexane (1:9, v/v).

1. extractionextracted with ethyl acetate
2. washThe organic layer was washed with saturated brine
3. dry with materialdried over anhydrous magnesium sulfate
4. concentrationconcentrated