反应详情

温度

80 °C

Under a nitrogen stream, 5.0 g (0.032 mol) of 4-chloro-phenyl boronic acid, 10.0 g (0.064 mol) of 2-bromopyridine, 150□ of tetrahydrofuran and 2M potassium carbonate solution (20□) were placed into a 2-neck round flask 250□ and then 0.37 g (3 mol %) of palladium tetrakistriphenylphosphine [(pd(PPh3)4] was added as a catalyst. After the resulting solution was heated to reflux at 80° C. for 24 hours, the reaction was terminated. The resulting mixture was poured into a beaker containing 200□ of distilled water. After extraction with ether (150□) three times, 10 g of magnesium sulfate was added. The resulting solution was stirred by a rotary stirrer for 30 minutes and then the extraction mixture was filtered. After removing the solvent using a rotary evaporator, the residue was subjected to column chromatography using dichloromethane as a developing solvent and then distilled under reduced pressure to give the 2-(4-chloro-phenyl)pyridine. The yield was 56%.

1. temperatureAfter the resulting solution was heated
2. customthe reaction was terminated
3. additionThe resulting mixture was poured into a beaker
4. additioncontaining 200□ of distilled water
5. extractionAfter extraction with ether (150□) three times, 10 g of magnesium sulfate
6. additionwas added
7. filtrationthe extraction mixture was filtered
8. customAfter removing the solvent
9. customa rotary evaporator
10. distillationdistilled under reduced pressure