反応式
C(C(CC)(P(O)(O)=O)C(O)=O)C.[H-].[Na+].[CH3:15][O:16][C:17]1[CH:18]=[C:19]([CH:23]2[CH2:27][CH2:26][CH2:25][C:24]2=O)[CH:20]=[CH:21][CH:22]=1.[C:29]([O:32][CH2:33][CH3:34])(=[O:31])[CH3:30]>COCCOC.O>[CH3:15][O:16][C:17]1[CH:18]=[C:19]([CH:23]2[CH2:27][CH2:26][CH2:25][C:24]2=[CH:30][C:29]([O:32][CH2:33][CH3:34])=[O:31])[CH:20]=[CH:21][CH:22]=1参加物
7
実験手順
To a solution of diethyl phosphono acetic acid (8.0 ml) in 1,2-dimethoxyethane (80 ml) was added sodium hydride (60% in oil, 1.4 g) at 0° C. under N2. After being stirred for 1 hour at ambient temperature, to the solution was added a solution of 2-(3-methoxyphenyl)cyclopentanone (4.5 g) in 1,2-dimethoxyethane (20 ml). After being stirred for 12 hours, the reaction mixture was poured into a mixture of ethyl acetate and water. The organic layer was washed with saturated sodium bicarbonate aqueous solution and brine. The dried solvent was concentrated and the obtained residue was purified by column chromatography on silica gel to give ethyl [2-(3-methoxyphenyl)cyclopentylidene]acetate (5.0 g).
後処理
- stirringAfter being stirred for 12 hours
- washThe organic layer was washed with saturated sodium bicarbonate aqueous solution and brine
- concentrationThe dried solvent was concentrated
- customthe obtained residue was purified by column chromatography on silica gel
出典と根拠
- ORDレコード
- ord-ad95da0c036d498085df69c8c0bc077e
- 出典データセット
- uspto-grants-2000_02
- 特許番号
- US06025375
関連ノート
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