Methane → 2-[4-(5-Hydroxy-1-pentyl)phenyl]-5-(ethoxy)pyrimidine
反応式
[OH:1][CH2:2][CH2:3][CH2:4][CH:5]=[CH:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[N:18]=[CH:17][C:16]([O:19][CH2:20][CH3:21])=[CH:15][N:14]=2)=[CH:9][CH:8]=1.C.[H][H]>[Pd].C(OCC)(=O)C>[OH:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][C:7]1[CH:8]=[CH:9][C:10]([C:13]2[N:18]=[CH:17][C:16]([O:19][CH2:20][CH3:21])=[CH:15][N:14]=2)=[CH:11][CH:12]=1参加物
6
実験手順
A mixture of 12 g of 2-[4-(5-hydroxy-1-pentenyl)phenyl]-5-(ethoxy)pyrimidine, 2 g of palladium on active charcoal (10 w/w %) and 150 ml of ethyl acetate was hydrogenated at normal pressure and room temperature until one molar equivalent of hydrogen had been taken up. The inorganic material was filtered off and the filtrate was concentrated. The residue was purified by chromatography on silica gel with hexane/ethyl acetate (vol. 8:2). Recrystallization from ethyl alcohol gave 8.5 g of pure 2-[4-(5-hydroxy-1-pentyl)phenyl]-5-(ethoxy)pyrimidine.
後処理
- filtrationThe inorganic material was filtered off
- concentrationthe filtrate was concentrated
- customThe residue was purified by chromatography on silica gel with hexane/ethyl acetate (vol. 8:2)
- customRecrystallization from ethyl alcohol
出典と根拠
- ORDレコード
- ord-ff325cb2a99b474a898129ff4e785f1c
- 出典データセット
- uspto-grants-1994_07
- 特許番号
- US05326497
反応ノート
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