反応式
[CH3:1][C:2]1([CH3:10])[O:9][C:7](=[O:8])[CH2:6][C:4](=[O:5])[O:3]1.[Si:11]([O:28][CH2:29][C:30]1[CH:31]=[C:32]([CH:35]=[CH:36][CH:37]=1)[CH:33]=O)([C:24]([CH3:27])([CH3:26])[CH3:25])([C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.N1C=CC=CC=1.O>C1COCC1.[Ti](Cl)(Cl)(Cl)Cl>[Si:11]([O:28][CH2:29][C:30]1[CH:31]=[C:32]([CH:35]=[CH:36][CH:37]=1)[CH:33]=[C:6]1[C:7](=[O:8])[O:9][C:2]([CH3:10])([CH3:1])[O:3][C:4]1=[O:5])([C:24]([CH3:27])([CH3:25])[CH3:26])([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1参加物
反応物 4
生成物 1
試薬・触媒・溶媒 2
反応条件
- 温度
- 0 °C
実験手順
To a solution of titanium (IV) chloride (9.88 g) in THF (80 mL) were added dropwise a solution of meldrum's acid (3.75 g) and 3-(((tert-butyldiphenylsilyl)oxy)methyl)benzaldehyde (6.50 g) in THF (50 mL) at 0° C., and pyridine (11.0 g) was further added dropwise at 0° C. over 30 min. The reaction mixture was stirred at 0° C. for 50 min, and water (100 mL) was added dropwise at 0° C. over 5 min. Water was further added, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (6.40 g) as a white amorphous solid.
後処理
- extractionthe mixture was extracted with ethyl acetate
- washThe extract was washed with saturated brine
- dry with materialdried over anhydrous sodium sulfate
- customThe solvent was evaporated under reduced pressure
- customthe residue was purified by silica gel column chromatography (ethyl acetate/hexane)
出典と根拠
- ORDレコード
- ord-325c835c56d845f49cbb99b683699d24
- 出典データセット
- uspto-grants-2016_07
- 特許番号
- US09382188B2
関連ノート
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