Dimethyl Sulfoxide → 2-[2-(5-Bromo-2-methoxyphenyl)-2-methylpropyl]-2-trifluoromethyloxirane
反応式
[F:1][C:2]([F:19])([F:18])[C:3](=[O:17])[CH2:4][C:5]([C:8]1[CH:13]=[C:12]([Br:14])[CH:11]=[CH:10][C:9]=1[O:15][CH3:16])([CH3:7])[CH3:6].[CH3:20]S(C)=O>>[Br:14][C:12]1[CH:11]=[CH:10][C:9]([O:15][CH3:16])=[C:8]([C:5]([CH3:7])([CH3:6])[CH2:4][C:3]2([C:2]([F:1])([F:18])[F:19])[CH2:20][O:17]2)[CH:13]=1参加物
3
実験手順
To a solution of 1,1,1-trifluoro-4-(5-bromo-2-methoxyphenyl)-4-methylpentan-2-one (5 g, 14.7 mmol) in 5 mL of anhydrous DMSO at room temperature was added 14.6 mL of the ylide stock solution (17.3 mmol) over 5 minutes. The reaction was quenched after 2 hours with water and diethyl ether. The aqueous layer was extracted with diethyl ether. The combined organic layers were washed with water and brine, dried over magnesium sulfate, filtered, and concentrated in vacuo to afford 2-[2-(5-bromo-2-methoxyphenyl)-2-methylpropyl]-2-trifluoromethyloxirane as a dark yellow oil.
後処理
- customThe reaction was quenched after 2 hours with water and diethyl ether
- extractionThe aqueous layer was extracted with diethyl ether
- washThe combined organic layers were washed with water and brine
- dry with materialdried over magnesium sulfate
- filtrationfiltered
- concentrationconcentrated in vacuo
出典と根拠
- ORDレコード
- ord-5f94526d6f414b84b75d2f16ab78fcb4
- 出典データセット
- uspto-grants-2009_08
- 特許番号
- US07579469B2
反応ノート
読み込み中…