HCID 11241422、化合物 → HCID 12447362、化合物
反応式
[C:1]([O:9][C@@:10]12[O:16][C@@H:11]1[CH2:12][CH2:13][CH2:14][CH2:15]2)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>C(Cl)Cl>[C:1]([O:9][C@H:10]1[CH2:15][CH2:14][CH2:13][CH2:12][C:11]1=[O:16])(=[O:8])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1参加物
3
実験手順
To a solution of (1R,2R)-2-benzoyloxy-1,2-epoxycyclohexane (0.030 g, 0.137 mmol, 93% ee) in anhydrous CH2Cl2 (0.4 mL) was added YbCl13 (0.0048 g, 0.0137 mmol). Upon stirring at room temperature for 30 min, the reaction mixture was quenched with saturated NaHCO3 solution, extracted with ether, dried over anhydrous Na2SO4, filtered, concentrated, and purified on buffered silica gel (0.5-1% Et3N) by flash column chromatography [EtOAc-CH2Cl2-hexane (3:7:40)] to afford (S)-2-benzoyloxy cyclohexanone (0.022 g, 73% yield, 88% ee).
後処理
- customthe reaction mixture was quenched with saturated NaHCO3 solution
- extractionextracted with ether
- dry with materialdried over anhydrous Na2SO4
- filtrationfiltered
- concentrationconcentrated
- custompurified on buffered silica gel (0.5-1% Et3N) by flash column chromatography [EtOAc-CH2Cl2-hexane (3:7:40)]
出典と根拠
- ORDレコード
- ord-5c25385fc5e44198a00ab521e7b7e35b
- 出典データセット
- uspto-grants-2002_05
- 特許番号
- US06384265B1
反応ノート
読み込み中…