反应详情

To a solution of the bromobenzene (4.35 g, 16.8 mmol) obtained above in chloroform (50 ml) was added m-chloroperbenzoic acid (4.09 g, 20.2 mmol, 85% purity), and the mixture was refluxed. Five hours later, m-chloroperbenzoic acid (2.05 g, 10.1 mmol) was added, and the mixture was refluxed for 29 hours. The reaction mixture was mixed with saturated aqueous sodium bicarbonate solution and hexaneethyl acetate, and the organic layer was separated. The organic layer was washed with saturated aqueous sodium bicarbonate solution and water in this order, dried over anhydrous magnesium sulfate and concentrated. The resulting residue was dissolved in methanol (20 ml) and mixed with potassium carbonate (4.64 g, 33.6 mmol) at 5 ° C. Twenty minutes later, the mixture was acidified with 3N HCl and extracted with ethyl acetate. The extract was dried over anhydrous magnesium sulfate and concentrated to give 2-(methoxymethyl) oxy-5-bromophenol (3.33 g, 85%).

1. temperaturethe mixture was refluxed
2. temperaturethe mixture was refluxed for 29 hours
3. customthe organic layer was separated
4. washThe organic layer was washed with saturated aqueous sodium bicarbonate solution and water in this order
5. dry with materialdried over anhydrous magnesium sulfate
6. concentrationconcentrated
7. dissolutionThe resulting residue was dissolved in methanol (20 ml)
8. customTwenty minutes
9. extractionextracted with ethyl acetate
10. dry with materialThe extract was dried over anhydrous magnesium sulfate
11. concentrationconcentrated