反应详情

温度

170 °C

A mixture of 266 (180 mg, 1.18 mmol), 2-fluoro-4-nitrophenol (558 mg, 3.55 mmol) and K2CO3(981 mg, 7.10 mmol) in Ph2O (4 mL) was heated at 170° C. for 8 hours, cooled to room temperature and partitioned between EtOAc and water. Organic phase was collected, dried over anhydrous Na2SO4 and concentrated. The residue was purified by flash column chromatography with gradient elution of hexane, to hexane/EtOAc (1:1), to afford the title compound 267 (84 mg, 26% yield) as a yellowish solid. MS (m/z): 274. 1 (M+H) (found).

1. temperaturecooled to room temperature
2. custompartitioned between EtOAc and water
3. customOrganic phase was collected
4. dry with materialdried over anhydrous Na2SO4
5. concentrationconcentrated
6. customThe residue was purified by flash column chromatography with gradient elution of hexane, to hexane/EtOAc (1:1)