Dimethyl Sulfoxide → 2,4-Dihydro-4-(4-(4-(4-methoxyphenyl)piperazin-1-yl)phenyl)-3H-1,2,4-triazol-3-one

HRID 2286560

反応式

HRID 2286560 の反応式
[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]([NH:21][C:22]([NH:24][NH2:25])=[O:23])=[CH:17][CH:16]=3)[CH2:11][CH2:10]2)=[CH:5][CH:4]=1.[C:26](O)(=O)C.C(=N)N.CS(C)=O.O(C(C)C)C(C)C>CC(C)CC(=O)C>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([N:9]2[CH2:10][CH2:11][N:12]([C:15]3[CH:20]=[CH:19][C:18]([N:21]4[CH:26]=[N:25][NH:24][C:22]4=[O:23])=[CH:17][CH:16]=3)[CH2:13][CH2:14]2)=[CH:7][CH:8]=1

参加物

6

反応物 4

HCID 679Dimethyl SulfoxideHCID 7914Diisopropyl EtherHCID 160693Formamidine acetateHCID 820816N-{4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl}hydrazinecarboxamide

生成物 1

HCID 42465972,4-Dihydro-4-(4-(4-(4-methoxyphenyl)piperazin-1-yl)phenyl)-3H-1,2,4-triazol-3-one収率 28%

試薬・触媒・溶媒 1

HCID 7909Methyl Isobutyl Ketone溶媒

反応条件

温度
100 °C

実験手順

A mixture of 3.4 parts of N-{4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl}hydrazinecarboxamide, 3 parts of methanimidamide acetate and 10 parts of dimethyl sulfoxide is stirred and heated for 2 hours at 100° C. The reaction mixture is cooled and poured onto a mixture of 4-methyl-2-pentanone and 2,2'-oxybispropane. The precipitated product is filtered off and crystallized from N,N-dimethylformamide (activated charcoal), yielding 1 part (28%) of 2,4-dihydro-4-{4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl}-3H-1,2,4-triazol-3-one; mp.+300° C.

後処理

  1. temperatureThe reaction mixture is cooled
  2. filtrationThe precipitated product is filtered off
  3. customcrystallized from N,N-dimethylformamide (activated charcoal)

出典と根拠

ORDレコード
ord-2bd45de0d8c54455b75629c410ef5fc1
出典データセット
uspto-grants-1981_05
特許番号
US04267179

関連ノート

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