反応式
[CH3:1][S:2]([C:5]1[CH:13]=[CH:12][C:8]([C:9](Cl)=[O:10])=[C:7]([N+:14]([O-:16])=[O:15])[CH:6]=1)(=[O:4])=[O:3].C(N(CC)CC)C.[CH3:24][C:25]1([CH3:33])[CH2:30][C:29](=[O:31])[CH2:28][C:27](=[O:32])[CH2:26]1.CC(C)(O)C#N>ClCCl>[CH3:1][S:2]([C:5]1[CH:13]=[CH:12][C:8]([C:9]([CH:28]2[C:29](=[O:31])[CH2:30][C:25]([CH3:33])([CH3:24])[CH2:26][C:27]2=[O:32])=[O:10])=[C:7]([N+:14]([O-:16])=[O:15])[CH:6]=1)(=[O:4])=[O:3]参加物
実験手順
A solution of 4-methylsulphonyl-2-nitrobenzoyl chloride (9.62 g) in dry dichloromethane (50 ml) was added to a stirred solution of triethylamine (5.6 ml) and 5,5-dimethylcyclohexane-1,3-dione (5 g) in dry dichloromethane (70 ml) during 30 minutes and the reaction mixture stirred at ambient temperature for 4 hours. Triethylamine (15.3 ml) and acetone cyanohydrin (0.5 ml) were added successively and the reaction mixture stirred at ambient temperature for 18 hours. The reaction mixture was washed successively with 2N hydrochloric acid (2×50 ml) and water (2×50 ml), dried over magnesium sulphate and evaporated under reduced pressure to give a yellow glass which was recrystallised from methanol (20 ml) to give 2-(4-methylsulphonyl-2-nitrobenzoyl)-5,5-dimethylcyclohexane-1,3-dione (6.4 g), m.p. 156.5°-158° C., as a yellow crystalline solid.
後処理
- stirringthe reaction mixture stirred at ambient temperature for 18 hours
- washThe reaction mixture was washed successively with 2N hydrochloric acid (2×50 ml) and water (2×50 ml)
- dry with materialdried over magnesium sulphate
- customevaporated under reduced pressure
- customto give a yellow glass which
- customwas recrystallised from methanol (20 ml)
出典と根拠
- ORDレコード
- ord-d58fcbdd740644d9af498b7e9b6eb406
- 出典データセット
- uspto-grants-1995_05
- 特許番号
- US05416061
関連ノート
読み込み中…