반응식
[F:1][C:2]([F:11])([F:10])[C:3]1[CH:8]=[CH:7][N:6]=[C:5]([NH2:9])[CH:4]=1.[H-].[Na+].[Cl:14][C:15]1[CH:20]=[C:19]([Cl:21])[CH:18]=[C:17](Cl)[N:16]=1>C1COCC1.O>[Cl:21][C:19]1[CH:20]=[C:15]([Cl:14])[N:16]=[C:17]([NH:9][C:5]2[CH:4]=[C:3]([C:2]([F:1])([F:10])[F:11])[CH:8]=[CH:7][N:6]=2)[CH:18]=1참가 물질
반응 조건
- 온도
- 0 °C
실험 절차
A mixture of 4-(trifluoromethyl)pyridin-2-amine (3.24 g, 20.0 mmol) and sodium hydride (1.2 g, 30 mmol) in THF (60 mL) was stirred at 0° C. under nitrogen for 1 hour, and then 2,4,6-trichloropyridine (3.62 g, 20.0 mmol) was added. The reaction was stirred at 25° C. for 3 hours. The mixture was diluted with water and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by chromatography on silica gel (ethyl acetate/petroleum ether) to give 4,6-dichloro-N-[4-(trifluoromethyl)pyridin-2-yl]pyridin-2-amine. MS ESI calc'd. for C11H7Cl2F3N3 [M+H]+ 308. found 308. 1H NMR (400 MHz, CD3OD): δ 8.49 (d, J=5.6 Hz, 1H), 7.99 (s, 1H), 7.87 (s, 1H), 7.19 (d, J=1.2 Hz, 1H), 7.05 (d, J=1.2 Hz, 1H).
후처리
- stirringThe reaction was stirred at 25° C. for 3 hours
- extractionextracted with ethyl acetate
- dry with materialThe organic layer was dried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- customThe residue was purified by chromatography on silica gel (ethyl acetate/petroleum ether)
출처 및 근거
- ORD 기록
- ord-7e65cb70ad374ef5a9c6d773e7532239
- 출처 데이터셋
- uspto-grants-2016_01
- 특허 번호
- US09242984B2
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