反应详情

2-chloro-5-iodobenzoyl chloride (10.7 g, 35.5 mmol) was dissolved in methylene chloride (200 mL). The resulting mixture was cooled in an ice-water bath. To the mixture was added aluminum trichloride (10.4 g, 78.2 mmol), and then added dropwise a solution of anisole (4.2 g, 38.9 mmol) in methylene chloride (50 mL). After the completion of dropwise addition, the resulting mixture was warmed up to room temperature and stirred for 3 hr. The reaction mixture was poured into ice-water and quenched. To the reaction mixture was added 3 mol/L hydrochloric acid. The resulting mixture was separated into an aqueous phase and an organic phase. The aqueous phase was extracted with methylene chloride (150 mL×2). The organic phases were combined, washed with a saturated sodium chloride solution, dried over anhydrous sodium sulphate, and concentrated under a reduced pressure. The resulting crude product was purified with a silica-gel column chromatography (ethyl acetate:petroleum ether=0-1:100) to produce 12.0 g of a product in a yield of 91%.

1. temperatureThe resulting mixture was cooled in an ice-water bath
2. additionAfter the completion of dropwise addition
3. customquenched
4. additionTo the reaction mixture was added 3 mol/L hydrochloric acid
5. customThe resulting mixture was separated into an aqueous phase
6. extractionThe aqueous phase was extracted with methylene chloride (150 mL×2)
7. washwashed with a saturated sodium chloride solution
8. dry with materialdried over anhydrous sodium sulphate
9. concentrationconcentrated under a reduced pressure
10. customThe resulting crude product was purified with a silica-gel column chromatography (ethyl acetate:petroleum ether=0-1:100)