反应详情

温度

70 °C

To a solution of ethyl 3-hydroxybenzoate (15.2 g, 0.10 mol) in N,N-dimethylformamide (100 ml) were added isopropyl bromide (12.1 ml, 0.13 mol) and sodium iodide (19.5 g, 0.13 mol), and the mixture was stirred at 70° C. for 15 hrs. To the reaction solution was added water (500 ml), and the mixture was extracted with ethyl acetate (500,200 ml). The extract was washed with water, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by silica gel chromatography (hexane:ethyl acetate=10:1) to give the objective substance (12.4 g, 64%) as an oil.

1. extractionthe mixture was extracted with ethyl acetate (500,200 ml)
2. washThe extract was washed with water
3. dry with materialdried over anhydrous magnesium sulfate
4. customevaporated under reduced pressure
5. customThe residue was purified by silica gel chromatography (hexane:ethyl acetate=10:1)
6. customto give the objective substance (12.4 g, 64%) as an oil