反应详情

温度

80 °C

To 2,4-dichloro-5-fluoropyrimidine (500 mg, 2.99 mmol), 2-chloropyridine-3-boronic acid (707 mg, 4.49 mmol), Pd(PPh3)4 (346 mg, 0.30 mmol) was added DME (9.0 mL) and 1 M NaHCO3 (3.0 mL). The mixture was heated overnight in a sealed tube at 80° C., cooled to RT, diluted with EtOAc, and washed with water and saturated Na2CO3. The organic layer was dried over Na2SO4, filtered, concentrated and purified by reverse-phase HPLC to provide 2-chloro-4-(2-chloro-pyridin-3-yl)-5-fluoro-pyrimidine. MS m/z=244, 246 [M]+ and [M+2]+. Calc'd for C9H4Cl2FN3: 244.06.

1. temperaturecooled to RT
2. washwashed with water and saturated Na2CO3
3. dry with materialThe organic layer was dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated
6. custompurified by reverse-phase HPLC