Ethyl Acetate → 3-(3-Pyridinyl)-2-propenenitrile
反応式
[H-].[Na+].[C:3]([CH2:5]P(=O)(OCC)OCC)#[N:4].[N:14]1[CH:19]=[CH:18][CH:17]=[C:16]([CH:20]=O)[CH:15]=1.C(OCC)(=O)C>O1CCCC1.O>[N:14]1[CH:19]=[CH:18][CH:17]=[C:16]([CH:20]=[CH:5][C:3]#[N:4])[CH:15]=1参加物
7
実験手順
To a suspension of sodium hydride (62% oil, 10.87 g) in tetrahydrofuran (200 ml) was added successively diethyl cyanomethylphosphonate (43.25 ml) and pyridine-3-carbaldehyde (24 ml) at 0° C. Then, the reaction mixture was heated to refluxing temperature. After 5 hours the reaction mixture was poured into a mixture of ethyl acetate (1 l) and water (200 ml). The organic layer was separated, washed with brine and dried over magnesium sulfate. Evaporation of the solvent gave a residue, which was chromatographed on silica gel (600 ml) eluting with ethyl acetate to give 3-(3-pyridyl)acrylonitrile (23.9 g).
後処理
- temperatureThen, the reaction mixture was heated
- temperatureto refluxing temperature
- customThe organic layer was separated
- washwashed with brine
- dry with materialdried over magnesium sulfate
- customEvaporation of the solvent
- customgave a residue, which
- customwas chromatographed on silica gel (600 ml)
- washeluting with ethyl acetate
出典と根拠
- ORDレコード
- ord-41d5268627cf41d2885bd74e24a6c625
- 出典データセット
- uspto-grants-1994_02
- 特許番号
- US05286721
反応ノート
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