Water → HCID 23317237, compound

Participants

Reaction Steps

100 mg of 3,8-dichloro-1-methyl-6-phenyl-1,2,3,4-tetrahydro-1,5-benzodiazocine hydrochloride is heated in 10 ml piperidine under reflux for 24 hours. For processing the mass was poured into water, extracted with chloroform and the chloroform was subsequently distilled off in a vacuum. The product was recrystallized from ether and there was obtained 7-chloro-1-methyl-2-piperidinomethyl-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepine which also was identical with the same material obtained in Examples 4 and 6 of application Ser. No. 355 986 directly by heating acyldiamines with phosphoroxychloride and subsequent reaction with piperidine; m.p. 143°-145° C.

Provenance & Evidence