反应详情

温度

0 °C

To a THF (15 mL) solution of sodium hydride (814 mg) triethylphosphonoacetic acid (4.1 mL) was added at 0° C., and the reaction solution was agitated at 0° C. for 30 minutes and at room temperature for 1 hour. After cooling the reaction solution at 0° C., the THF (5 mL) solution of 3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzaldehyde (4.0 g) synthesized in Example 1 was added dropwise to the reaction solution. The reaction solution was further agitated at 0° C. for 30 minutes and then at room temperature for 2 hours. Ethyl acetate and water was added to the reaction solution, and the organic layer was separated and washed with a saturated ammonium chloride solution. After drying with anhydrous magnesium sulfate, the solvent was evaporated under reduced pressure. By re-crystallizing the obtained solid using a mixed solution of hexane and ethyl acetate, the 4.55 g (86%) title compound was obtained. The physical properties of the compound are as follows.

1. temperatureAfter cooling the reaction solution at 0° C.
2. stirringThe reaction solution was further agitated at 0° C. for 30 minutes
3. waitat room temperature for 2 hours
4. customthe organic layer was separated
5. washwashed with a saturated ammonium chloride solution
6. dry with materialAfter drying with anhydrous magnesium sulfate
7. customthe solvent was evaporated under reduced pressure
8. customBy re-crystallizing the obtained solid