反应详情

温度

18 °C

To a solution of 5-bromo-2,3-dimethoxypyridine (4-2, 0.300 g, 1.38 mmol, 1.0 equiv) in dimethylformamide (3.9 mL) was added copper (I) cyanide (0.15 gL, 1.65 mmol, 1.2 equiv) and the reaction mixture was heated for 40 minutes at 18° C. in a microwave reactor. The reaction mixture was cooled and partitioned between EtOAc (50 mL) and water (50 mL). The organic phase was washed with water (2×30 mL) and brine (1×30 mL), dried over magnesium sulfate and concentrated. The residue was purified via normal phase chromatography (0 to 40% EtOAc in hexanes, silica) to afford the desired product (4-3) as white solid after concentration. ESI+MS[M+H]+C8H8N2O2 calc'd 165.1. found 165.1.

1. temperatureThe reaction mixture was cooled
2. custompartitioned between EtOAc (50 mL) and water (50 mL)
3. washThe organic phase was washed with water (2×30 mL) and brine (1×30 mL)
4. dry with materialdried over magnesium sulfate
5. concentrationconcentrated
6. customThe residue was purified via normal phase chromatography (0 to 40% EtOAc in hexanes, silica)