Dipropylamine → HCID 21842262, compound

Participants

Reaction Steps

0.30 g (0.00091 mol) of 3-(4-chloromethyl-oxazol-2-yl)-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one was dissolved in 40 ml of tetrahydrofuran, treated with 2.5 ml (0.0183 mol) of dipropylamine and boiled at reflux for 20 hrs. The solution was completely freed from the solvents and the residue was chromatographed over silica gel with ethyl acetate/ethanol 9:1 as the eluent. There was obtained 0.24 g (67%) of 3-(4-dipropylaminomethyl-oxazol-2-yl)-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one as a white solid. An analytical sample was recrystallized from diisopropyl ether and gave white crystals; m.p. 109-110°.

Provenance & Evidence