Dimethyl Sulfate → 1-(4-methoxyphenyl)-4-{4-[3-(methylthio)4H-1,2,4-triazol-4-yl]phenyl}piperazine

反応式

[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([N:9]2[CH2:14][CH2:13][N:12]([C:15]3[CH:20]=[CH:19][C:18]([N:21]4[CH:25]=[N:24][N:23]=[C:22]4[SH:26])=[CH:17][CH:16]=3)[CH2:11][CH2:10]2)=[CH:5][CH:4]=1.[OH-].[Na+].S(OC)(O[CH3:33])(=O)=O>CO>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([N:9]2[CH2:10][CH2:11][N:12]([C:15]3[CH:20]=[CH:19][C:18]([N:21]4[CH:25]=[N:24][N:23]=[C:22]4[S:26][CH3:33])=[CH:17][CH:16]=3)[CH2:13][CH2:14]2)=[CH:5][CH:4]=1

参加物

実験手順

A mixture of 9 parts of 4-{4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl}-4H-1,2,4-triazole-3-thiol, 2 parts of sodium hydroxide and 160 parts of methanol is stirred and warmed till all solid enters solution. Then there are added 3.3 parts of dimethyl sulfate and stirring is continued for 3 hours at room temperature. The reaction mixture is poured onto water. The precipitated product is filtered off and crystallized from 1-butanol, yielding 5.3 parts of 1-(4-methoxyphenyl)-4-{4-[3-(methylthio)-4H-1,2,4-triazol-4-yl]phenyl}piperazine; mp. 180° C.