反応式
[SH:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([O:11][CH3:12])=[O:10])=[CH:4][CH:3]=1.[C:13](=[O:16])([O-])[O-].[K+].[K+].[I-].[K+].[C:21](OC(=O)CBr)([CH3:24])([CH3:23])[CH3:22].[CH3:30]C(C)=O>>[C:21]([CH2:24][C:13]([S:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][C:9]([O:11][CH3:12])=[O:10])=[CH:6][CH:7]=1)=[O:16])([CH3:30])([CH3:23])[CH3:22]参加物
6
実験手順
Dissolve methyl 4-mercaptophenylacetate (16.4 g, 90.3 mmol) in acetone (300 mL). Add potassium carbonate (13.7 g, 99.3 mmol), potassium iodide (1.47 g, 9.03 mmol) and t-butylbromoacetate (16 mL, 99.3 mmol). Heat at reflux for 20 hours then remove 200 mL of acetone in vacuo. Dilute the residue with ethyl ether (500 mL), wash with water (2×300 mL) and brine (300 mL). Dry (MgSO4) and evaporate the solvent in vacuo. Purify by flash chromatography to give the title compound.
後処理
- temperatureHeat
- temperatureat reflux for 20 hours
- customthen remove 200 mL of acetone in vacuo
- additionDilute the residue with ethyl ether (500 mL)
- washwash with water (2×300 mL) and brine (300 mL)
- dry with materialDry (MgSO4)
- customevaporate the solvent in vacuo
- customPurify by flash chromatography
出典と根拠
- ORDレコード
- ord-6f218fe89b5c4aafaca031e3af768e57
- 出典データセット
- uspto-grants-1993_05
- 特許番号
- US05208240
関連ノート
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