反应详情

To aluminum chloride (54.5 g) and dichloromethane (250 ml) was dropwise added 1-chloronaphthalene (47 ml) under ice-cooling over 10 minutes. The obtained reaction mixture was stirred for 20 minutes and acetyl chloride (25 ml) was dropwise added over 40 minutes. The reaction mixture was stirred at room temperature for 4 hours and with refluxing for 20 minutes. The reaction mixture was cooled to room temperature, poured into 1N hydrochloric acid (300 ml), extracted with dichloromethane, washed with saturated brine and dried over magnesium sulfate. The solvent was distilled away and the residue was subjected to silica gel column chromatography (hexane-ethyl acetate) to give 37.3 g of a red-brown liquid (yield 55%).

1. temperaturecooling over 10 minutes
2. customThe obtained reaction mixture
3. stirringThe reaction mixture was stirred at room temperature for 4 hours
4. temperaturewith refluxing for 20 minutes
5. extractionextracted with dichloromethane
6. washwashed with saturated brine
7. dry with materialdried over magnesium sulfate
8. distillationThe solvent was distilled away