Thionyl Chloride → HCID 22120448、化合物
反応式
S(Cl)([Cl:3])=O.[CH2:5]([O:12][C:13]([NH:15][C:16]([C:19]1[CH:27]=[CH:26][C:22]([C:23](O)=[O:24])=[CH:21][CH:20]=1)([CH3:18])[CH3:17])=[O:14])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1>CN(C)C=O.ClCCl>[CH2:5]([O:12][C:13]([NH:15][C:16]([C:19]1[CH:27]=[CH:26][C:22]([C:23]([Cl:3])=[O:24])=[CH:21][CH:20]=1)([CH3:18])[CH3:17])=[O:14])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1参加物
実験手順
Thionyl chloride (0.21 ml) and dimethylformamide (2 drops) were added to a solution of 4-(1-benzyloxycarbonylamino-1-methylethyl)-benzoic acid (780 mg) in dichloromethane (10 ml), and the mixture was refluxed under heating for 1 hour. After the reaction, the solvent was evaporated under reduced pressure to give 4-(1-benzyloxycarbonylamino-1-methylethyl)benzoyl chloride as crystals. Then, the crystals were dissolved in acetonitrile (10 ml), and the solution was dropwise added to a solution of 4-aminopyridine (195 mg) and diisopropylethylamine (0.5 ml) in acetonitrile (10 ml) under ice-cooling. The mixture was stirred at room temperature for 5 hours. After the reaction, water was added, and the mixture was extracted with ethyl acetate. The extract was washed with water and dried. The solvent was evaporated under reduced pressure, and the obtained crystals were recrystallized from ethyl acetate-hexane to give 750 mg of N-(4-pyridyl)-4-(1-benzyloxycarbonylamino-1-methylethyl)benzamide.
後処理
- temperaturethe mixture was refluxed
- temperatureunder heating for 1 hour
- customAfter the reaction
- customthe solvent was evaporated under reduced pressure
出典と根拠
- ORDレコード
- ord-f52b460b8ae14e6da6dcd1ce596e8e10
- 出典データセット
- uspto-grants-1999_09
- 特許番号
- US05958944
反応ノート
読み込み中…