Acetic Acid → 8-Chloro-6-(2-fluorophenyl)-1-methyl-3-morpholino-4H-imidazo[1,5-a][1,4]benzodiazepine

Participants

Reaction Steps

A mixture of 0.4 g of 7-chloro-5-(2-fluorophenyl)-2,3-dihydro-N-hydroxy-α-(4-morpholinyl)-1H-1,4-benzodiazepine-2-methanimine, 5 ml of glacial acetic acid and 0.4 ml of acetaldehyde was heated to reflux for 5 minutes. The usual workup and chromatography of the crude reaction mixture on 5 g of silica gel using 5% (v/v) of ethanol in methylene chloride gave yellow crystalline product identical with that described above.

Provenance & Evidence