Ammonia → HCID 20338090, compound

Participants

Reaction Steps

An amount of 55 mg of 2-(10,11-dihydro dibenzo[b,f]thiepin-2-yl)-propionic acid was dissolved in 0.5 ml of chloroform solution containing 0.02 ml of triethylamine and the resulting mixture was added dropwise with ice-cooling over a period of 5 minutes to 0.5 ml of chloroform solution containing 0.02 ml of ethyl chlorocarbonate. The mixture was stirred for 10 minutes at the same temperature, then at room temperature for 30 minutes after introduction of ammonia gas. After the completion of the reaction, to this was added water and the resulting mixture was extracted with chloroform. The extract was washed with dilute sodium hydroxide solution, then saturated sodium chloride solution, and dried over anhydrous sodium sulfate. The solvent was distilled off to obtain pale brown crystals, which were chromatographed over silica gel, eluted with chloroform, and there were obtained pale yellow crystals. These were recrystallized from benzene-n-hexane to give 26 mg of 2-(10,11-dihydro dibenzo[b,f]thiepin-2-yl)-propionamide as colorless crystals having a melting point of 135°-135.5° C.

Provenance & Evidence