反应详情

A flask is charged with 1-(2-hydroxy-6-methoxyphenyl)ethanone (30 g, 180.5 mmol), potassium carbonate, (49.9 g, 361 mmol), sodium iodide (2.68 g, 18.1 mmol), and 4-methoxybenzylchloride (27.0 mL, 198.6 mmol) in THF and the mixture is heated to reflux overnight. The mixture is cooled to room temperature, diluted with water and extracted with ethyl acetate. The combined organic extracts are washed with brine and dried over anhydrous MgSO4, filtered, and concentrated. The crude product is purified by silica gel chromatography with an eluent of ethyl acetate/hexanes to give 32.51 g (57%) of the desired product as a white solid.

1. temperaturethe mixture is heated
2. temperatureto reflux overnight
3. extractionextracted with ethyl acetate
4. washThe combined organic extracts are washed with brine
5. dry with materialdried over anhydrous MgSO4
6. filtrationfiltered
7. concentrationconcentrated
8. customThe crude product is purified by silica gel chromatography with an eluent of ethyl acetate/hexanes