Ammonia → HCID 20470725, compound

Participants

Reaction Steps

With stirring, 21.8 g (0.1 mole) of 10-cyano-5H-dibenz[b,f]azepine are added to a solution of 19.8 g (0.2 mole) of phosgene in 700 ml of absolute toluene. The mixture is then stirred for 30 hours at 50°-53° C. and subsequently completely concentrated in a rotary evaporator, affording as residue crude 10-cyano-5H-dibenz[b,f]azepine-5-carbonyl chloride with a melting point of 148°-153° C. With stirring, the crude product is dissolved at 70° C. in 600 ml of absolute ethanol. Ammonia gas is then introduced into this solution in the course of 2 hours while constantly keeping the reaction mixture under reflux. The reaction mixture is then concentrated in a rotary evaporator and the residue is washed and dried. Recrystallisation from toluene yields 10-cyano-5H-dibenz[b,f]azepine-5-carboxamide with a melting point of 212°-215° C.

Provenance & Evidence