反応式
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH3:10])[N:6]=[C:5]([O:11][C:12]2[CH:17]=[CH:16][CH:15]=[N+:14]([O-])[C:13]=2[C:19]([O:21][CH3:22])=[O:20])[N:4]=1.C(N(C(C)C)CC)(C)C.[I-].[Na+].[CH3:34][N:35]([CH2:39][C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1)C(Cl)=O>C(#N)C>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH3:10])[N:6]=[C:5]([O:11][C:12]2[C:13]([C:19]([O:21][CH3:22])=[O:20])=[N:14][C:15]([N:35]([CH3:34])[CH2:39][C:40]3[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=3)=[CH:16][CH:17]=2)[N:4]=1参加物
実験手順
20 g (77.1 mmol) of methyl 3-[(4,6-dimethoxypyrimidin-2-yl)oxy]picolinate N-oxide, 15 g (116 mmol) of diisopropylethylamine and 46.2 g (308.2 mmol) of sodium iodide were suspended in 200 ml of acetonitrile and stirred at room temperature for 15 minutes. To this mixture, 21.2 g (115.4 mmol) of N-methyl-N-benzylcarbamoyl chloride dissolved in 20 ml of acetonitrile was added at room temperature. The mixture was refluxed. Foaming started at a temperature slightly lower than the boiling point, and such foaming terminated in about 30 minutes. The reaction was continued for further 10 minutes. The reaction solution was poured into water and extracted with ethyl acetate. The extract was washed with water, dried, concentrated and then purified by silica gel column chromatography to obtain the desired product.
後処理
- additionwas added at room temperature
- temperatureThe mixture was refluxed
- customsuch foaming terminated in about 30 minutes
- waitThe reaction was continued for further 10 minutes
- additionThe reaction solution was poured into water
- extractionextracted with ethyl acetate
- washThe extract was washed with water
- customdried
- concentrationconcentrated
- custompurified by silica gel column chromatography
出典と根拠
- ORDレコード
- ord-cf59d4b1fa2d4d4481b66b5822abfd7e
- 出典データセット
- uspto-grants-1995_04
- 特許番号
- US05403816
関連ノート
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