Sodium hydride → HCID 20393045, compound

Participants

Reaction Conditions

Reaction Steps

A mixture consisting of 5.06 gm of 6,11-dihydro-2, 4,6-trimethyl-5H-pyrido[2,3-b][1,5]benzodiazepin-5-one, 1.1 gm of 50% sodium hydride in mineral oil and 60 ml of dimethyl formamide was stirred at 80° C. for 1 hour. Then, 4.5 gm of 2-morpholino-ethyl chloride were added, and the mixture was stirred at 120° C. for 3.5 hours more. The precipitate formed thereby was suction-filtered off, the solvent was removed from the filtrate in vacuo, and the oily residue was purified on a silica gel column. The product was recrystallized from petroleum ether (b.p. 100°-140° C.), yielding 64% of theory of the compound named in the heading, which had a melting point of 133°-135° C.

Provenance & Evidence