反应详情

A mixture of 17.47 parts of N,N-bis(2-chloroethyl)-4-methoxybenzenamine, 16.3 parts of 1-(4-aminophenyl)-3-ethyl-2,4(1H,3H)-pyrimidinedione, 11.83 parts of sodium hydrogen carbonate and 240 parts of 1-butanol was stirred for 24 hours at reflux temperature. After cooling, 150 parts of water were added. The product was filtered off and crystallized from methylbenzene. The product was filtered off and dried in vacuo at 60° C., yielding 10.6 parts (37.0%) of 3-ethyl-1-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]-2,4(1H,3H)-pyrimidinedione; mp. 210.2° C. (int. 26).

1. temperatureat reflux temperature
2. temperatureAfter cooling
3. filtrationThe product was filtered off
4. customcrystallized from methylbenzene
5. filtrationThe product was filtered off
6. customdried in vacuo at 60° C.