反应详情

温度

120 °C

To a solution of 6-bromopyridine-2-carbonitrile (80 mg, 0.44 mmol) and 4-(morpholin-4-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidine (P2) (241 mg, 0.523 mmol) in 1,4-dioxane (2.5 mL) and water (0.5 mL) was added tetrakis(triphenylphosphine)palladium(0) (51 mg, 44 μmol) and sodium carbonate (140 mg, 1.32 mmol). The reaction mixture was heated at 120° C. under microwave irradiation for 15 minutes, then diluted with water (30 mL) and extracted with ethyl acetate (3×50 mL). The combined organic layers were washed with saturated aqueous sodium chloride solution (100 mL), dried over sodium sulfate, filtered, and concentrated in vacuo; purification via preparative thin layer chromatography (Eluent: 1:1 petroleum ether/ethyl acetate) afforded the product as a brown oil. Yield: 110 mg, 0.252 mmol, 57%. 1H NMR (400 MHz, CDCl3) δ 8.52 (s, 1H), 7.84-7.93 (m, 2H), 7.74 (s, 1H), 7.59 (dd, J=7.0, 1.2 Hz, 1H), 5.66 (s, 2H), 3.56-3.65 (m, 6H), 3.34-3.40 (m, 4H), 0.93 (dd, J=8.3, 8.0 Hz, 2H), −0.05 (s, 9H).

1. extractionextracted with ethyl acetate (3×50 mL)
2. washThe combined organic layers were washed with saturated aqueous sodium chloride solution (100 mL)
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. custompurification via preparative thin layer chromatography (Eluent: 1:1 petroleum ether/ethyl acetate)