Diisopropylamine → HCID 21842256, compound

Participants

Reaction Steps

0.30 g (0.00082 mol) of 7-chloro-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 2.3 ml (0.0165 mol) of diisopropylamine and boiled at 150° in an autoclave for 20 hrs. The solution was completely freed from the solvents, the residue was chromatographed over silica gel with ethyl acetate/ethanol 9:1 as the eluent and recrystallized from hot diisopropyl ether. There was obtained 0.11 g (31%) of 7-chloro-3-(4-diisopropylaminomethyl-oxazol-2-yl)-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one as white crystals; m.p. 164°-166°.

Provenance & Evidence