Hydrochloric Acid → Awd 12-281

Participants

Reaction Conditions

Reaction Steps

5 g (38 mmol) anhydrous aluminium chloride is introduced into 50 ml ethane-1,2, -dithiol. A solution of 4.7 g of N-(3,5-dichloropyridin-4-yl)-2-[1-(4-fluorobenzyl)-5-methoxyindol-3-yl]-2-oxoacetamide (10 mmol) in 50 ml of dichloromethane is added at 0° C. The mixture is stirred at 0° C. for 4 hours. 50 ml of 10% hydrochloric acid is added dropwise at from 0 to 10° C. with stirring. The crystallizing product is isolated, washed with water and dried at 20° C. A pure product is obtained by recrystallization from ethanol (180 ml).

Provenance & Evidence