反应详情

温度

150 °C

To a microwave tube was added 1-bromo-2,3,4,5-tetrafluorobenzene (1.0 g) and 28% aqueous ammonium hydroxide (5 mL). The mixture was heated under microwave irradiation at 150° C. for 2 hrs, then the mixture was poured into water and extracted with hexane. The organic layer was separated, dried with MgSO4, then concentrated. The residue was purified by silica gel flash chromatography (9:1 hexanes/ethyl acetate eluant) afford the title compound as a colorless liquid. 1H NMR (400 MHz, CDCl3) δ 6.75 (m, 1H), 3.95 (br s, 2H) ppm; MS m/z: 226, 228 (M+H)+.

1. extractionextracted with hexane
2. customThe organic layer was separated
3. dry with materialdried with MgSO4
4. concentrationconcentrated
5. customThe residue was purified by silica gel flash chromatography (9:1 hexanes/ethyl acetate eluant)