反应详情

温度

0 °C

To a sodium hydride suspension (40% mineral oil content, 2.77 g) in THF (50 mL) and DMF (200 mL), a solution of 3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzaldehyde (10 g) obtained in Example 1 and 1-acetylpiperidin-2-one (7.17 g) in THF (50 mL) and DMF (200 mL) were added dropwise over 20 minutes at 5° C. This reaction solution was agitated at 0° C. for 2 hours. The reaction solution was added to iced water and the reaction solution was extracted with ethyl acetate. The obtained organic layer was washed with a saturated sodium chloride solution, and concentrated under reduced pressure after dried over anhydrous magnesium sulfate. The deposited solids were separated by filtering and 5.0 g of the title compound was obtained by washing with diethyl ether. The physical properties of the compound are as follows.

1. extractionthe reaction solution was extracted with ethyl acetate
2. washThe obtained organic layer was washed with a saturated sodium chloride solution
3. concentrationconcentrated under reduced pressure
4. dry with materialafter dried over anhydrous magnesium sulfate
5. customThe deposited solids were separated
6. filtrationby filtering