反应详情

温度

100 °C

To a mixture of 2,4-dichloro-5-methoxypyrimidine (0.967 g, 0.00540 mol), and tert-butyl 4-{3-cyano-2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]propyl}piperidine-1-carboxylate (from example 1 step 3, 2.00 g, 0.00450 mol) in 1,4-dioxane (40 mL, 0.5 mol) was added a 1 M solution of sodium carbonate (0.954 g, 0.00900 mol) in water (8.99 mL, 0.499 mol) and tetrakis(triphenylphosphine)palladium(0) (0.4 g, 0.0003 mol). The reaction mixture was heated at 100° C. overnight. After cooling to room temperature, the mixture was diluted with EtOAc, washed with water, brine, dried over MgSO4, and concentrated. The residue was purified on silica gel, eluting with 0 to 80% EtOAc in hexanes, to provide the desired product (1.59 g, 76.64%). LCMS (M+Na) 483.4.

1. temperatureAfter cooling to room temperature
2. washwashed with water, brine
3. dry with materialdried over MgSO4
4. concentrationconcentrated
5. customThe residue was purified on silica gel
6. washeluting with 0 to 80% EtOAc in hexanes