Hydrochloric Acid → 1-(5-Bromo-6-methoxynaphthalen-2-yl)ethan-1-one

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A suspension of 43 g of anhydrous AlCl3 and 24.6 g (0.313 mole) of acetyl chloride in 200 ml of 1,2-dichloroethane at 10° C. was cooled to 0° C. and added dropwise under stirring with a solution of 59.25 g (0.250 mole) of 1-bromo-2-methoxy-naphthalene in 150 ml of 1,2-dichloroethane. The resulting solution was stirred for 15 minutes then poured into a cold solution of 300 ml of water and 100 ml of 2 N hydrochloric acid. The organic phase was separated, washed first with 100 ml of 1 N hydrochloric acid and then with 100 ml of water, dried under vacuum and the obtained residue was crystallized from 2-butanol. Yield 68.11 g (98%).

Herkunft & Nachweise