反応式
[NH2:1][C:2]1[CH:7]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:5]=[CH:4][C:3]=1[S:12][C:13]1[C:20]([C:21]([F:24])([F:23])[F:22])=[CH:19][CH:18]=[CH:17][C:14]=1[C:15]#N.[OH-:25].[Na+].C1(C)C(C)=CC=CC=1>C(O)(=O)C.S(=O)(=O)(O)O.O>[F:23][C:21]([F:24])([F:22])[C:20]1[C:13]2[S:12][C:3]3[CH:4]=[CH:5][C:6]([C:8]([F:9])([F:10])[F:11])=[CH:7][C:2]=3[NH:1][C:15](=[O:25])[C:14]=2[CH:17]=[CH:18][CH:19]=1参加物
実験手順
2-(2-Amino-4-trifluoromethylphenylthio)-3-trifluoromethylbenzonitrile (5.43 g, 15 mmol) was dissolved in a mixture of glacial acetic acid (60 ml), concentrated sulphuric acid (55 ml) and water (60 ml) and then heated under reflux for 8 hours. The cooled mixture was added to ice water (500 ml) and brought to pH 4 by addition of 10N aqueous sodium hydroxide. Extraction with dichloromethane followed by filtration, drying (sodium sulphate) and evaporation of the organic layer afforded a residue which was put into xylene (500 ml) and refluxed for 72 hours with azeotropic removal of water. The resulting solution was evaporated and the residue was recrystallised twice from ethanol to give the product as colourless needles (4.30 g, m/s, M+ =363).
後処理
- temperatureheated
- temperatureunder reflux for 8 hours
- extractionExtraction with dichloromethane
- filtrationfollowed by filtration
- customdrying
- custom(sodium sulphate) and evaporation of the organic layer
- customafforded a residue which
- customThe resulting solution was evaporated
- customthe residue was recrystallised twice from ethanol
出典と根拠
- ORDレコード
- ord-17e84a3c41ea44e3a4633a93a698b915
- 出典データセット
- uspto-grants-1997_03
- 特許番号
- US05607929
関連ノート
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