反应详情

温度

150 °C

To a solution of 6-chloro-1-(6-fluoro-2-pyridyl)pyrazolo[4,3-c]pyridine (85 mg; 0.34 mmol) and tetrakis(triphenylphosphine)palladium (40 mg, 0.034 mmol) in N,N-dimethylacetamide; 2.0 mL was added (6-ethylpyrazin-2-yl)-trimethyl-stannane (185 mg, 0.684 mmol). The reaction was purged with N2 for 5 min then heated at 150° C. for 45 min in biotage microwave. The reaction mixture was filtered through celite and concentrated. The crude product was diluted with EtOAc then washed with water. The organic layers was dried with sodium sulfate, filtered, and concentrated in vacuum. The crude product was purified by flash chromatography (EtOAc/Heptane eluted at 50% EtOAc) to give 6-(6-ethylpyrazin-2-yl)-1-(6-fluoro-2-pyridyl)pyrazolo[4,3-c]pyridine (45 mg) in 41% yield. MS (ESI) m/z: 321.2

1. customThe reaction was purged with N2 for 5 min
2. filtrationThe reaction mixture was filtered through celite
3. concentrationconcentrated
4. additionThe crude product was diluted with EtOAc
5. washthen washed with water
6. dry with materialThe organic layers was dried with sodium sulfate
7. filtrationfiltered
8. concentrationconcentrated in vacuum
9. customThe crude product was purified by flash chromatography (EtOAc/Heptane eluted at 50% EtOAc)