反应详情

温度

100 °C

To Na2CO3 (151 mg, 1.41 mmol) was added water (1.5 ml) and acetonitrile (2 ml) and the solution was degassed for 5 min with argon. 3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazol-1-yl]pyridine (84 mg, 0.31 mmol), 6-bromo-4-(ethoxyamino)-1H-1,5-naphthyridin-2-one (80 mg, 0.28 mmol) and Pd(dppf)Cl2 (10 mg, 0.014 mmol) were added sequentially followed by addition of acetonitrile (2 ml). The mixture was stirred at 100° C. for 15 h then allowed to cool to ambient temperature. Water and ethyl acetate were added then the phases were separated. The aqueous phase was extracted with ethyl acetate, the combined organic phases were dried over Na2SO4, filtered and concentrated in vacuo. Purification by chromatography afforded of 4-(ethoxyamino)-6-[1-(3-pyridyl)pyrazol-4-yl]-1H-1,5-naphthyridin-2-one.

1. customthe solution was degassed for 5 min with argon
2. temperatureto cool to ambient temperature
3. customthe phases were separated
4. extractionThe aqueous phase was extracted with ethyl acetate
5. dry with materialthe combined organic phases were dried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo
8. customPurification by chromatography