反应详情

An ice-cold solution of 4-bromo-2-methylphenol (5.6 g, 30 mmol) and pyridine (6.1 mL, 75 mmol) in 50 mL of anhydrous dichloromethane was treated with a solution of acetyl chloride (2.8 mL, 26 mmol) in 5 mL of anhydrous dichloromethane. After 2 hours, the reaction mixture was concentrated in vacuo. The resulting residue was treated with crushed ice, diluted with 150 mL of dichloromethane, washed with water, dried over sodium sulfate, filtered, and concentrated in vacuo to give 6.9 g of 4-bromo-2-methylphenyl acetate as a light brown oil (quantitative yield).

1. concentrationthe reaction mixture was concentrated in vacuo
2. additionThe resulting residue was treated with crushed ice
3. additiondiluted with 150 mL of dichloromethane
4. washwashed with water
5. dry with materialdried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated in vacuo