Water → HCID 66836000、化合物
反応式
[CH3:1][N:2]1[CH2:7][CH2:6][CH:5]([O:8][CH:9]([C:19]2[CH:24]=[CH:23][CH:22]=[C:21]([N+:25]([O-])=O)[CH:20]=2)[C:10]2[NH:14][C:13]3[CH:15]=[CH:16][CH:17]=[CH:18][C:12]=3[N:11]=2)[CH2:4][CH2:3]1.[Sn+2].O.O.[Cl-].[Cl-].O.[OH-].[Na+]>C(O)C>[NH:11]1[C:12]2[CH:18]=[CH:17][CH:16]=[CH:15][C:13]=2[N:14]=[C:10]1[CH:9]([O:8][CH:5]1[CH2:4][CH2:3][N:2]([CH3:1])[CH2:7][CH2:6]1)[C:19]1[CH:20]=[C:21]([NH2:25])[CH:22]=[CH:23][CH:24]=1参加物
6
実験手順
To a solution of 2-[(1-Methyl-piperidin-4-yloxy)-(3-nitro-phenyl)-methyl]-1H benzimidazole (110 mg) in ethanol (5 mL) is added Tin(II)dichloride-dihydrate (340 mg). The reaction mixture is heated at reflux for 2 hours. Water is added to the mixture as well as sodium hydroxide 1N solution to pH 10 The solution is extracted with chloroform. The pooled organic phases are dried with magnesium sulphate and concentrated under reduced pressure. The residue is purified by chromatography (gradient dichloromethane/methanol/ammonia from 98/2/0.2 to 90/10/1) to give 3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]phenylamine that is used without further purification.
後処理
- temperatureThe reaction mixture is heated
- temperatureat reflux for 2 hours
- extractionis extracted with chloroform
- dry with materialThe pooled organic phases are dried with magnesium sulphate
- concentrationconcentrated under reduced pressure
- customThe residue is purified by chromatography (gradient dichloromethane/methanol/ammonia from 98/2/0.2 to 90/10/1)
出典と根拠
- ORDレコード
- ord-17ff6f04536a41a5983946b6c430783b
- 出典データセット
- uspto-grants-2014_08
- 特許番号
- US08802664B2
反応ノート
読み込み中…