Ammonia → N-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]thiourea

Participants

Reaction Steps

To a stirred solution of 20 parts of 1-(4-isothiocyanatophenyl)-4-(4-methoxyphenyl)piperazine in 325 parts of dichloromethane were added 40 parts of methanol, saturated with ammonia. The reaction mixture was stirred for 5 days at room temperature. The precipitated product was filtered off, washed with dichloromethane and dried, yielding 20.5 parts (98.1%) of N-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]thiourea; mp. 265.2° C. (int. 1).

Provenance & Evidence