反应详情

温度

0 °C

To dichloromethane (6.7 mL), acetyl chloride (189 μL, 2.66 mmol) and alminium chloride (267 mg, 2.0 mmol) were added sequentially at 0° C., and the mixture was stirred at 0° C. for 10 minutes. Then, a solution of cyclopropyl(phenyl)sulfane (200 mg, 1.33 mmol) in dichloromethane (890 μL) was added, and stirred at 0° C. for 0.5 hours. The reaction solution was added 5% aqueous solution of hydrochloric acid, and extracted with ethyl acetate. The organic layer was washed with a saturated aqueous solution of sodium hydrogen carbonate and brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The obtained residue was purified by silica-gel column chromatography (hexane/ethyl acetate), and 1-(4-(cyclopropylthio)phenyl)ethanone (181 mg (yield 71%)) was obtained as a colorless oil.

1. stirringstirred at 0° C. for 0.5 hours
2. extractionextracted with ethyl acetate
3. washThe organic layer was washed with a saturated aqueous solution of sodium hydrogen carbonate and brine
4. dry with materialdried over anhydrous sodium sulfate
5. concentrationconcentrated in vacuo
6. customThe obtained residue was purified by silica-gel column chromatography (hexane/ethyl acetate)