反应详情

A solution of 2 ml (18.0 mmol) of (2,6-difluorophenyl)methanol in 15 ml of dry tetrahydrofuran stirred at 0° C. was admixed with 865.9 mg (21.6 mmol) of sodium hydride (60% in mineral oil), followed by 1.72 ml (18.0 mmol) of 2-bromopyridine. The resulting solution was stirred at room temperature for 15 h. The reaction mixture was diluted with water (15 ml) and extracted with dichloromethane (2×20 ml). The organic phase was removed, dried with a phase separation cartridge and concentrated under reduced pressure. The residue was purified by flash chromatography using a prepacked silica gel cartridge (eluent:cyclohexane-ethyl acetate 10:1 to 1:1), which gave 800 mg (15% of theory, 77% pure) of the target compound.

1. extractionextracted with dichloromethane (2×20 ml)
2. customThe organic phase was removed
3. customdried with a phase separation cartridge
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified by flash chromatography
6. customgave 800 mg (15% of theory, 77% pure) of the target compound