反应详情

Anhydrous aluminum chloride (21 g) was suspended in methylene chloride (300 mL), and then acetyl chloride (12.3 g) was added while stirring and cooling on ice. The mixture was stirred for 10 minutes while cooling on ice and 4-bromophenol (24.5 g) was added. The reaction mixture was stirred at room temperature for 1 hour, and then ice water was added and extraction was performed with ethyl acetate. The organic layer was washed with brine and then dried over anhydrous magnesium sulfate. After distilling off the solvent under reduced pressure, the residue was purified by silica gel column chromatography (solvent: n-hexane-ethyl acetate) to yield the title compound (23.9 g) as an oil.

1. temperaturecooling on ice
2. stirringThe mixture was stirred for 10 minutes
3. additionwas added
4. stirringThe reaction mixture was stirred at room temperature for 1 hour
5. extractionextraction
6. washThe organic layer was washed with brine
7. dry with materialdried over anhydrous magnesium sulfate
8. distillationAfter distilling off the solvent under reduced pressure
9. customthe residue was purified by silica gel column chromatography (solvent: n-hexane-ethyl acetate)