反应详情

温度

180 °C

To a stirred solution of 1-(1-bromo-2,2,2-trifluoro-ethyl)-3,5-dichloro-benzene (2.0 g, 6.51 mmol) in 1,2-dichlorobenzene (25 mL), were added 1-(4-vinyl-phenyl)-1H-[1,2,4]triazole (2.22 g, 13.0 mmol), CuCl (64 mg, 0.65 mmol) and 2,2-bipyridyl (0.2 g, 1.3 mmol). The resultant reaction mixture was degassed with argon for 30 min, then stirred at 180° C. for 24 h. After completion of reaction (TLC), the reaction mixture was cooled to ambient temperature and filtered and the filtrate concentrated under reduced pressure. Purification by flash chromatography (SiO2, 100-200 mesh; 25-30% EtOAc in petroleum ether) afforded the title compound as an off-white solid (0.8 g, 32%): mp 93-97° C.; 1H NMR (300 MHz, CDCl3) δ 8.56 (s, 1H), 8.11 (s, 1H), 7.68 (d, J=8.4 Hz, 2H), 7.54 (d, J=8.4 Hz, 2H), 7.38 (t, J=1.8 Hz, 1H), 7.29 (s, 2H), 6.62 (d, J=15.6 Hz, 1H), 6.42 (dd, J=15.6, 8.2 Hz, 1H), 4.15 (m, 1H); ESIMS m/z 398.05 ([M+H]+).

1. customThe resultant reaction mixture
2. customwas degassed with argon for 30 min
3. customAfter completion of reaction (TLC)
4. temperaturethe reaction mixture was cooled to ambient temperature
5. filtrationfiltered
6. concentrationthe filtrate concentrated under reduced pressure
7. customPurification by flash chromatography (SiO2, 100-200 mesh; 25-30% EtOAc in petroleum ether)