Chloromethyl methyl sulfide → HCID 13210510, compound
Reaction equation
[CH2:1]([N:8]1[CH2:13][CH2:12][N:11]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([NH:21][C:22]3[N:27]=[CH:26][CH:25]=[CH:24][N:23]=3)=[CH:17][CH:16]=2)[C:10](=[O:28])[C:9]1=[O:29])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].Cl[CH2:33][S:34][CH3:35]>CN(C)C=O>[CH2:1]([N:8]1[CH2:13][CH2:12][N:11]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([N:21]([CH2:33][S:34][CH3:35])[C:22]3[N:23]=[CH:24][CH:25]=[CH:26][N:27]=3)=[CH:17][CH:16]=2)[C:10](=[O:28])[C:9]1=[O:29])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
Procedure
In 40 ml of N,N-dimethylformamide was dissolved 3.0 g of 1-benzyl-4-[4-(2-pyrimidinylamino)benzyl]-2,3-dioxopiperazine, and 0.372 g of sodium hydride (purity 52%) was added thereto, after which the resulting mixture was subjected to reaction at 80° C. for 30 min. with stirring. The reaction mixture was then cooled, and 0.72 ml of chloromethylmethylsulfide was added thereto, after which the resulting mixture was subjected to reaction at 50° to 60° C. for 2 hours. After the completion of the reaction, the reaction mixture was distilled under reduced pressure and the residue thus obtained was extracted with chloroform and then washed with water. The solution thus obtained was dried over anhydrous magnesium sulfate, and the solvent was then removed by distillation under reduced pressure. The crystals thus obtained were recrystallized from isopropyl alcohol to obtain 3.0 g (86.45% yield) of white crystalline 1-benzyl-4-{4-[N-methylthiomethyl-N-(2-pyrimidinyl)amino]benzyl}-2,3-dioxopiperazine having a melting point of 156° C.
Workup
- additionwas added
- customafter which the resulting mixture was subjected to reaction at 80° C. for 30 min.
- temperatureThe reaction mixture was then cooled
- customafter which the resulting mixture was subjected to reaction at 50° to 60° C. for 2 hours
- customAfter the completion of the reaction
- distillationthe reaction mixture was distilled under reduced pressure
- customthe residue thus obtained
- extractionwas extracted with chloroform
- washwashed with water
- customThe solution thus obtained
- dry with materialwas dried over anhydrous magnesium sulfate
- customthe solvent was then removed by distillation under reduced pressure
- customThe crystals thus obtained
- customwere recrystallized from isopropyl alcohol
Sources & evidence
- ORD record
- ord-d41476b81c0e4a44a2f5b2d9067aa6c3
- Source dataset
- uspto-grants-1984_07
- Patent number
- US04459407
Reaction notes
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