Hydrochloric Acid → HCID 18347079, compound

Participants

Reaction Steps

3,4-dimethoxy-3-cyclobutene-1,2-dione (428 mg) was added to a solution of N-[(3-aminophenyl)-(4-methoxyphenyl)methyl]benzamide hydrochloride (555 mg) [prepared as described in step (d) above] in methanol (15 ml) at ambient temperature. After stirring for 10 minutes, a solution of triethylamine (153 mg) in methanol (10 ml) was added dropwise to the mixture. This mixture was stirred at ambient temperature for 1 hour. The reaction mixture was then slightly acidified with hydrochloric acid (0.5N) and extracted with ethyl acetate. The organic extract was washed with a saturated aqueous solution of sodium chloride, dried over anhydrous magnesium sulfate and concentrated by evaporation under reduced pressure. The residue was purified by chromatography through a silica gel column using a 1:1 by volume mixture of hexane and ethyl acetate as the eluant, to afford the title compound (505 mg) as a white foamy solid.

Provenance & Evidence