反应详情

To a solution of 7-hydroxybenzofuran (2.60 g) in DMF (30 ml) was added potassium carbonate (3.75 g) and then was added dropwise bromopropane (2.87 g) under nitrogen atmosphere, and the mixture was stirred overnight. To the mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed with water (three times) and saturated brine, and dried with magnesium sulfate. Under reduced pressure, the solvent was evaporated to give brown oil of 7-propoxybenzofuran (2.73 g).

1. extractionthe mixture was extracted with ethyl acetate
2. washThe organic layer was washed with water (three times) and saturated brine
3. dry with materialdried with magnesium sulfate
4. customUnder reduced pressure, the solvent was evaporated