Water → HCID 22005233、化合物
反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:13]([C:14](OC)=[O:15])=[C:12]([CH3:18])[N:11]=[C:10]([CH:19]([CH3:21])[CH3:20])[C:9]=2[C:22]([O:24][CH2:25][CH3:26])=[O:23])=[CH:4][CH:3]=1.O>C1(C)C=CC=CC=1.O1CCCC1>[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[C:13]([CH2:14][OH:15])=[C:12]([CH3:18])[N:11]=[C:10]([CH:19]([CH3:20])[CH3:21])[C:9]=2[C:22]([O:24][CH2:25][CH3:26])=[O:23])=[CH:6][CH:7]=1参加物
5
実験手順
26.5 ml (92.75 mmol) of a 3.5 molar solution of sodium bis-(2-methoxyethoxy)-dihydroaluminate in toluene are added under nitrogen to a solution of 9.5 g (26.5 mmol) of the compound from Example 19 in 200 ml of absolute tetrahydrofuran at 0° C. and the mixture is stirred for 30 minutes at room temperature. After cooling again to 0° C., 200 ml of water are cautiously added dropwise and the mixture is extracted three times using 150 ml of ethyl acetate each time. The combined organic phases are washed once with saturated sodium chloride solution, dried over magnesium sulphate and concentrated in vacuo. The residue is chromatographed on a column (200 g of silica gel 70-230 mesh, φ4.5 cm, using ethyl acetate/petroleum ether 2:8).
後処理
- temperatureAfter cooling again to 0° C.
- extractionthe mixture is extracted three times
- washThe combined organic phases are washed once with saturated sodium chloride solution
- dry with materialdried over magnesium sulphate
- concentrationconcentrated in vacuo
- customThe residue is chromatographed on a column (200 g of silica gel 70-230 mesh, φ4.5 cm, using ethyl acetate/petroleum ether 2:8)
出典と根拠
- ORDレコード
- ord-9e12f42415214f3f8f9acab42a21cf13
- 出典データセット
- uspto-grants-1992_12
- 特許番号
- US05169857
反応ノート
読み込み中…