反应详情

温度

100 °C

2-Bromopyrimidine (5.42 g, 34.1 mmol), sodium carbonate (22.75 mL, 45.5 mmol), 5-bromo-2-fluoropyridine-3-boronic acid (5 g, 22.75 mmol, commercially available from Frontier Scientific, Inc., Logan Utah), and dichloro(1,1-bis(diphenylphosphinoferrocene))palladium(II) (1.858 g, 2.275 mmol, commercially available from Sigma-Aldrich, Milwaukee, Wis.) were combined in dioxane (32.5 mL) and stirred at 100° C. overnight. LC-MS indicated good conversion to desired product. The material thus obtained was absorbed onto a plug of silica gel and purified by chromatography through a Redi-Sep pre-packed silica gel column (12 g), eluting with a gradient of 0% to 10% MeOH in DCM, to provide 2-(5-bromo-2-fluoropyridin-3-yl)pyrimidine (4.37 g, 17.20 mmol, 76% yield) as yellow solid. m/z (ESI) 253.8.