Sodium Hydroxide → HCID 12138351、化合物
反応式
[CH3:1][N:2]([CH3:22])[C:3]([S:5][C:6]1[CH:7]=[C:8]([CH:13]=[C:14]([S:16][C:17](=[O:21])[N:18]([CH3:20])[CH3:19])[CH:15]=1)[C:9]([O:11]C)=[O:10])=[O:4].[OH-].[Na+]>>[CH3:1][N:2]([CH3:22])[C:3]([S:5][C:6]1[CH:7]=[C:8]([CH:13]=[C:14]([S:16][C:17](=[O:21])[N:18]([CH3:20])[CH3:19])[CH:15]=1)[C:9]([OH:11])=[O:10])=[O:4]参加物
3
実験手順
Methyl 3,5-bis(dimethylcarbamoylthio)benzoate (3.42 g, 10 mmol) was made to react with 5% aqueous sodium hydroxide solution (10 ml. 12.5 mmol) for 3 hours at 22-25° C. with stirring. After cooling by the addition of 50 ml of ice-water, the reaction mixture was extracted with ethyl acetate (300 ml×3) and the extract was dried over magnesium sulfate. The ethyl acetate was evaporated under reduced pressure and the colorless crystals thus obtained was recrystallized from ethanol to give 2.86 g (87.2%) of 3,5-bis(dimethylcarbamoylthio)benzoic acid as colorless needles. The melting point is 196-198° C. (with decomposition).
後処理
- extractionthe reaction mixture was extracted with ethyl acetate (300 ml×3)
- dry with materialthe extract was dried over magnesium sulfate
- customThe ethyl acetate was evaporated under reduced pressure
- customthe colorless crystals thus obtained
- customwas recrystallized from ethanol
出典と根拠
- ORDレコード
- ord-53656245d6054e1486b8d8e47cd86770
- 出典データセット
- uspto-grants-2003_10
- 特許番号
- US06630578B2
反応ノート
読み込み中…