反应方程式
[CH3:1][C:2]1[O:3][C:4]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[CH:5][C:6]=1[CH:7]=[O:8].Br[Mg][CH:17]1[CH2:22][CH2:21][O:20][CH2:19][CH2:18]1.C(OCC)C.Cl.O>O1CCCC1>[CH3:1][C:2]1[O:3][C:4]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[CH:5][C:6]=1[CH:7]([CH:17]1[CH2:22][CH2:21][O:20][CH2:19][CH2:18]1)[OH:8]参与物
6
反应条件
- 温度
- 0 °C
实验过程
To a solution of 2-methyl-5-phenylfuran-3-carbaldehyde (1.9 g) in tetrahydrofuran (30 mL) was added dropwise bromo(tetrahydro-2H-pyran-4-yl)magnesium-diethyl ether solution (30 mL) at 0° C. and, after the completion of the dropwise addition, the mixture was stirred at 0° C. for 30 min. The reaction mixture was treated with 1N hydrochloric acid, poured into water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column (10% ethyl acetate/hexane to 40% ethyl acetate/hexane) to give the title compound (2.3 g, 86%) as an oil.
后处理
- additionafter the completion of the dropwise addition
- extractionthe mixture was extracted with ethyl acetate
- washThe organic layer was washed with saturated brine
- dry with materialdried over magnesium sulfate
- customThe solvent was evaporated under reduced pressure
- customthe residue was purified by silica gel column (10% ethyl acetate/hexane to 40% ethyl acetate/hexane)
来源与证据
- ORD记录
- ord-9ee7c736d71249d8b6d97a2b035b8719
- 来源数据集
- uspto-grants-2012_11
- 专利号
- US08309580B2
关联笔记
加载中…