Phosphorus oxychloride → HCID 22674092、化合物
反応式
[C:1]1([CH3:21])[CH:6]=[CH:5][C:4]([S:7]([NH:10][C:11]2[CH:12]=[C:13]3[C:18](=[CH:19][CH:20]=2)[CH:17]=[N:16][CH:15]=[CH:14]3)(=[O:9])=[O:8])=[CH:3][CH:2]=1.[Cl:22]C1C=CC=C(C(OO)=O)C=1.P(Cl)(Cl)(Cl)=O>C(Cl)(Cl)Cl>[Cl:22][C:17]1[C:18]2[C:13](=[CH:12][C:11]([NH:10][S:7]([C:4]3[CH:3]=[CH:2][C:1]([CH3:21])=[CH:6][CH:5]=3)(=[O:8])=[O:9])=[CH:20][CH:19]=2)[CH:14]=[CH:15][N:16]=1参加物
実験手順
6-(4-Toluenesulfonylamino) isoquinoline (3.0 g, Production Example 21b) was dissolved in chloroform (100 ml). Under ice-cooling, m-chloroperbenzoic acid (2.57 g) was added thereto, followed by stirring at room temperature overnight. The solvent was evaporated, and the resulting crystals were washed with diethyl ether, collected by filtration and dried, to give pale yellow crystals. The crystals were suspended in chloroform (83 ml) and phosphorous oxychloride (19 ml) was added thereto, followed by heating under reflux for 5 hours. After cooling, the solvent was evaporated. The residue was basified by adding an aqueous saturated sodium bicarbonate in an ice bath, and then the mixture was extracted with ethyl acetate. The extract was washed with brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated. The residue was purified by silica gel column, to give crude crystals of the title compound (1.630 g, 49.40%). The crystals were recrystallized from ethanol, to give the title compound as colorless crystals.
後処理
- temperatureUnder ice-cooling
- customThe solvent was evaporated
- washthe resulting crystals were washed with diethyl ether
- filtrationcollected by filtration
- customdried
- customto give pale yellow crystals
- temperatureby heating
- temperatureunder reflux for 5 hours
- temperatureAfter cooling
- customthe solvent was evaporated
- additionby adding an aqueous saturated sodium bicarbonate in an ice bath
- extractionthe mixture was extracted with ethyl acetate
- washThe extract was washed with brine
- dry with materialdried over anhydrous magnesium sulfate
- customthe solvent was evaporated
- customThe residue was purified by silica gel column
出典と根拠
- ORDレコード
- ord-7ee22318b0f94471ba67c7a764b9271f
- 出典データセット
- uspto-grants-2010_11
- 特許番号
- US07834049B2
反応ノート
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