反应详情

温度

120 °C

1-Bromo-5-fluoro-2-methyl-3-nitro-benzene (9.40 g, 41.45 mmol) was dissolved in 90 mL dry DMF, and 2,4-difluorophenol (5.93 g, 45.58 mmol) and potassium carbonate (6.70 g, 45.58 mmol) were added. The reaction mixture was placed under nitronge and heated to 120° C. with stirring for 18 hours. The reaction mixture was cooled and concentrated under reduced pressure, and the residue was partitioned between water and EtOAc. The organic phase was separated, washed with 1N aqueous NaOH and brine, dried (MgSO4), filtered and concentrated under reduced pressure. The residue was chromatographed through silica (0%-6% EtOAc in hexanes) to give 8.484 g of 1-bromo-5-(2,4-difluoro-phenoxy)-2-methyl-3-nitro-benzene.

1. temperatureThe reaction mixture was cooled
2. concentrationconcentrated under reduced pressure
3. customthe residue was partitioned between water and EtOAc
4. customThe organic phase was separated
5. washwashed with 1N aqueous NaOH and brine
6. dry with materialdried (MgSO4)
7. filtrationfiltered
8. concentrationconcentrated under reduced pressure
9. customThe residue was chromatographed through silica (0%-6% EtOAc in hexanes)