反応式
[C:1]1([C:7]2[NH:8][C:9]([C:11]3[C:16]([CH:17]=2)=[CH:15][CH:14]=[CH:13][CH:12]=3)=[O:10])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[H-].[Na+].[CH3:20][O:21][C:22]1[CH:23]=[C:24]([S:30](Cl)(=[O:32])=[O:31])[CH:25]=[CH:26][C:27]=1[O:28][CH3:29]>CN(C)C=O>[CH3:20][O:21][C:22]1[CH:23]=[C:24]([S:30]([N:8]2[C:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)=[CH:17][C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:9]2=[O:10])(=[O:31])=[O:32])[CH:25]=[CH:26][C:27]=1[O:28][CH3:29]参加物
反応条件
- 温度
- 0 °C
実験手順
A solution of 3-phenylisocarbostyril (0.1 g) in N,N-dimethylformamide (2 ml) was cooled to 0° C. under an inert atmosphere. Sodium hydride (0.019 g) was added and the resulting mixture stirred at 0° C. for 5 minutes. 3,4-Dimethoxybenzenesulphonylchloride (0.107 g) was added over a 3 minute period, with continued stirring at 0° C. for a further 15 minutes. The reaction mixture was warmed to room temperature and stirred for 24 hours. The DMF was evaporated under high vacuum and the residue partitioned between ethyl acetate (2×12 ml) and water (12 ml). The combined organic phases were dried over magnesium sulphate and concentrated in vacuo to yield a yellow oil. Purification using column chromatography eluting with 50% ethyl acetate in hexane yielded an oil which was crystallized from ethyl acetate/hexane to furnish the title compound as white crystals (0.089 g).
後処理
- stirringwith continued stirring at 0° C. for a further 15 minutes
- temperatureThe reaction mixture was warmed to room temperature
- stirringstirred for 24 hours
- customThe DMF was evaporated under high vacuum
- customthe residue partitioned between ethyl acetate (2×12 ml) and water (12 ml)
- dry with materialThe combined organic phases were dried over magnesium sulphate
- concentrationconcentrated in vacuo
- customto yield a yellow oil
- customPurification
- washeluting with 50% ethyl acetate in hexane
- customyielded an oil which
- customwas crystallized from ethyl acetate/hexane
出典と根拠
- ORDレコード
- ord-1251e1d4efb04be2a0db094b4b863a07
- 出典データセット
- uspto-grants-1998_03
- 特許番号
- US05728712
関連ノート
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