反应详情

温度

100 °C

To a solution of 2-chloro-N-(3-cyano-1-phenyl-1H-pyrazol-5-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (Preparation 7, 0.5 mmol) in dioxane (5 mL) was added N-(6-bromopyridin-2-yl)acetamide (118 mg, 0.55 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (41 mg, 0.05 mmol), sodium carbonate (183 mg, 1.72 mmol) and water (1 mL). The reaction was heated to 100° C. for 18 hours. The reaction was allowed to cool to room temperature and diluted with ethyl acetate (10 mL) and water (10 mL). The layers were separated and the aqueous phase extracted with ethyl acetate (3×10 mL). The combined organic extracts were dried over sodium sulphate and concentrated in vacuo. The residue was purified by silica gel column chromatography eluting with 40-50% ethyl acetate in heptanes to afford the title compound as a yellow solid (104 mg, 46%).

1. temperatureto cool to room temperature
2. customThe layers were separated
3. extractionthe aqueous phase extracted with ethyl acetate (3×10 mL)
4. dry with materialThe combined organic extracts were dried over sodium sulphate
5. concentrationconcentrated in vacuo
6. customThe residue was purified by silica gel column chromatography
7. washeluting with 40-50% ethyl acetate in heptanes