Lithium Hydroxide → HCID 58277379、化合物
反応式
[F:1][C:2]1[CH:3]=[C:4]([C:8]2[N:12]([C:13]3[CH:18]=[CH:17][CH:16]=[C:15]([O:19][CH3:20])[CH:14]=3)[N:11]=[C:10]([C:21]([O:23]CC)=[O:22])[CH:9]=2)[CH:5]=[CH:6][CH:7]=1.[OH-].[Li+]>O1CCOCC1.O>[F:1][C:2]1[CH:3]=[C:4]([C:8]2[N:12]([C:13]3[CH:18]=[CH:17][CH:16]=[C:15]([O:19][CH3:20])[CH:14]=3)[N:11]=[C:10]([C:21]([OH:23])=[O:22])[CH:9]=2)[CH:5]=[CH:6][CH:7]=1参加物
5
反応条件
- 温度
- 70 °C
実験手順
34.0 g (99.9 mmol) of the compound of Example 30A are provided in 150 ml of 1,4-dioxane, 150 ml (300 mmol) of a 2N solution of lithium hydroxide in water are added, and the mixture is stirred at 70° C. for 1 h. The mixture is concentrated, a conc. aqueous hydrogen chloride solution is subsequently added to the residue until the pH is acidic, the mixture is extracted with dichloromethane, and the organic phase is dried over magnesium sulfate, filtered and concentrated. The residue is recrystallized from diethyl ether. 26.1 g (84% of theory) of the title compound are obtained.
後処理
- concentrationThe mixture is concentrated
- additiona conc. aqueous hydrogen chloride solution is subsequently added to the residue until the pH
- extractionthe mixture is extracted with dichloromethane
- dry with materialthe organic phase is dried over magnesium sulfate
- filtrationfiltered
- concentrationconcentrated
- customThe residue is recrystallized from diethyl ether
出典と根拠
- ORDレコード
- ord-c89f0417023541f893d3d5423c6797fa
- 出典データセット
- uspto-grants-2013_03
- 特許番号
- US08399682B2
反応ノート
読み込み中…