反应详情

4-(3,5-Difluorophenoxy)phenol (3.0 g, 13.5 mmol) was added to an ethanolic solution of sodium ethoxide prepared from ethanol (15 ml) and sodium (313 mg, 13.6 mmol). To the resultant solution, 1-chloro-2-propanol (1.60 g, 16.9 mmol) was dropwise added with stirring under reflux. After completion of the addition, the resultant mixture was stirred under reflux for 5 hours. After allowed to cool, ethanol was removed, and the residual oil was dissolved in toluene. The toluene layer was washed with water once, a 20% aqueous potassium hydroxide solution two times and a saturated aqueous sodium chloride solution once in order and dried over anhydrous magnesium sulfate. Removal of the solvent gave 1-methyl-2-[4-(3,5-difluorophenoxy)phenoxy]ethanol (2.24 g).

1. temperatureunder reflux
2. additionAfter completion of the addition
3. temperatureunder reflux for 5 hours
4. temperatureto cool
5. customethanol was removed
6. dissolutionthe residual oil was dissolved in toluene
7. washThe toluene layer was washed with water once
8. dry with materiala 20% aqueous potassium hydroxide solution two times and a saturated aqueous sodium chloride solution once in order and dried over anhydrous magnesium sulfate
9. customRemoval of the solvent