反应详情

温度

80 °C

A mixture of 4,6-dichloro-5-ethylpyrimidine (10 g), 2-furylboronic acid (6.33 g) tetrakis(triphenylphosphine)palladium (1.94 g), dimethoxyethane (100 ml), and sodium carbonate solution (2 mol/l) (60 ml) was stirred at 70° C. for 2 hours and at 80° C. for 2 hours. After standing to cool the reaction mixture to room temperature, to the reaction mixture, water was added, and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 6.06 g of 4-chloro-5-ethyl-6-(furan-2-yl)-pyrimidine.

1. temperatureto cool the reaction mixture to room temperature
2. extractionextracted with ethyl acetate
3. dry with materialThe organic layer was dried over sodium sulfate
4. concentrationconcentrated under reduced pressure