反应详情

温度

50 °C

To a solution of 1-(5-hydroxy-1-benzofuran-2-yl)ethanone (2.40 g, 13.7 mmol) in anhydrous DMF (1 mL) were added 4-ethoxybenzyl chloride (2.81 g, 16.5 mmol) and potassium carbonate (3.78 g, 27.4 mmol) and the mixture was stirred at 50° C. overnight. Saturated brine was added thereto, and the mixture was extracted three times with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure to give 1-{5-[(4-ethoxybenzyl)oxy]-1-benzofuran-2-yl}ethanone (6.95 g). This was directly used for the next reaction.

1. extractionthe mixture was extracted three times with ethyl acetate
2. washThe extract was washed with saturated brine
3. dry with materialdried over anhydrous magnesium sulfate
4. customThe solvent was evaporated under reduced pressure