反应详情

温度

100 °C

Sodium carbonate (3 g, 30 mmol) in water (20 mL) was added to a mixture of 4-acetyl-3-ethoxy-2-iodo-6-methylbenzonitrile (3 g, 9 mmol) and {6-[(dimethylamino)carbonyl]pyridin-3-yl}boronic acid (1700 mg, 8.8 mmol, Example 313, Step 2) in acetonitrile (100 mL). The mixture was degassed with nitrogen and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II), complex with dichloromethane (1:1) (400 mg, 0.4 mmol) was added. The reaction was degassed again with nitrogen and was heated to 100° C. for 4 hrs. The reaction was allowed to cool to room temperature, diluted with water and extracted with EtOAc. The combined organic layer was washed with brine, dried over MgSO4, filtered and concentrated to give the crude product. The product was purified by FCC on silica gel eluting (hexane/EtOAc, 0-100%) gradient to give 5-(3-acetyl-6-cyano-2-ethoxy-5-methylphenyl)-N,N-dimethylpyridine-2-carboxamide product as yellow solid (2.3 g, 75%). LCMS calculated for C20H22N3O3(M+H)+: m/z=352.1; found: 352.2.

1. additionwas added
2. customThe reaction was degassed again with nitrogen
3. temperatureto cool to room temperature
4. additiondiluted with water
5. extractionextracted with EtOAc
6. washThe combined organic layer was washed with brine
7. dry with materialdried over MgSO4
8. filtrationfiltered
9. concentrationconcentrated
10. customto give the crude product
11. customThe product was purified by FCC on silica gel eluting (hexane/EtOAc, 0-100%) gradient