2,2'-Bipyridine → (E)-N-(2-chloro-4-(4,4,4-trifluoro-3-(3,4,5-trichlorophenyl)but-1-en-1-yl)benzyl)pyridin-2-amine

온도

180 °C

To a stirred solution of N-(2-chloro-4-vinylbenzyl)pyridin-2-amine (0.3 g, 1.22 mmol) in 1,2-dichlorobenzene (5 mL) were added 5-(1-bromo-2,2,2-trifluoroethyl)-1,2,3-trichlorobenzene (0.83 g, 2.44 mmol), CuCl (24 mg, 0.24 mmol) and 2,2-bipyridyl (76 mg, 0.48 mmol). The resultant reaction mixture was degassed with argon for 30 min and then stirred at 180° C. for 24 h. After the reaction was deemed complete by TLC, the reaction mixture was cooled to ambient temperature and filtered, and the filtrate was concentrated under reduced pressure. Purification by flash chromatography (SiO2, 100-200 mesh; 15% EtOAc in n-hexane) afforded the title compound as an off-white solid (0.2 g, 35%): mp 140-142° C.; 1H NMR (400 MHz, CDCl3) δ 8.11 (d, J=4.0 Hz, 1H), 7.40 (m, 5H), 7.22 (m, 1H), 6.61 (m, 2H), 6.35 (m, 2H), 4.94 (br s, 1H), 4.61 (d, J=6.4 Hz, 2H), 4.11 (m, 1H); ESIMS m/z 505.39 ([M+H]+).

1. customThe resultant reaction mixture
2. customwas degassed with argon for 30 min
3. temperaturethe reaction mixture was cooled to ambient temperature
4. filtrationfiltered
5. concentrationthe filtrate was concentrated under reduced pressure
6. customPurification by flash chromatography (SiO2, 100-200 mesh; 15% EtOAc in n-hexane)

ORD 기록

ord-0bae55b6e6014205b7bc559c9cf12ef3

출처 데이터셋

uspto-grants-2016_01

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US09226501B2