Ethanol → HCID 15290905, compound

Participants

Reaction Conditions

Reaction Steps

1.0 ml (15 mmol) of benzoyl chloride and 2.1 ml (15 mmol) of triethylamine were added to a solution of 4 g (13.6 mmol) of 1-(4-aminophenyl)-4-methyl-7,8-methylenedioxy-5H-2,3-benzodiazepine in dichloromethane and the reaction mixture was stirred at 25° C. for 24 hours. The solution was extracted with 3×30 ml of water, 3×20 ml of a 4% aqueous sodium hydroxide solution and finally with 2×30 ml of distilled water. The organic layer was dried, evaporated under reduced pressure, then the crystalline residue was treated with 20 ml of hot ethanol to obtain 3.97 g of raw product, m.p. 242°-243° C. This raw product was repeatedly treated with 20 ml of hot ethanol, next day it was filtered at 0°-5° C., washed with 3×3 ml of ethanol and dried at 100° C. to yield 3.85 g (71.3%) of the pure aimed product, m.p. 246°-247° C. (decomp.).

Provenance & Evidence