反応式
[C:1]([O:5][C:6]([C:8]1[O:9][C:10]2[CH:17]=[CH:16][CH:15]=[C:14]([OH:18])[C:11]=2[C:12]=1[CH3:13])=[O:7])([CH3:4])([CH3:3])[CH3:2].[N:19]1[CH:24]=[CH:23][CH:22]=[C:21]([CH2:25]Cl)[CH:20]=1.CN(C=O)C>O>[C:1]([O:5][C:6]([C:8]1[O:9][C:10]2[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH2:25][C:21]3[CH:20]=[N:19][CH:24]=[CH:23][CH:22]=3)[C:11]=2[C:12]=1[CH3:13])=[O:7])([CH3:4])([CH3:2])[CH3:3]参加物
5
実験手順
To a round bottom flask with stir bar was added 4-hydroxy-3-methyl-benzofuran-2 carboxylic acid t-butyl ester (1 mmol), 3-picolyl chloride (1.1 equiv.) potassium carbonate (5 equiv.) and 10 mL DMF. The reaction mixture was stirred overnight and then slowly added dropwise to water (10 mL) with stirring. The resulting mixture was extracted with ethyl acetate (2×20 mL), brine (20 mL), dried over magenesium sulfate. Filtration and evaporation of solvent afforded 3-methyl-4-(pyridin-3-ylmethoxy)-benzofuran-2-carboxylic acid t-butyl ester as a thick oil in 90% yield.
後処理
- stirringThe reaction mixture was stirred overnight
- stirringwith stirring
- extractionThe resulting mixture was extracted with ethyl acetate (2×20 mL), brine (20 mL)
- dry with materialdried over magenesium sulfate
- filtrationFiltration and evaporation of solvent
出典と根拠
- ORDレコード
- ord-283ee1398f014fee8050dfa0cf6b04c0
- 出典データセット
- uspto-grants-2008_09
- 特許番号
- US07420001B2
関連ノート
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