2,2,2-Trifluoroethanol → 3-Bromo-5-(2,2,2-trifluoroethoxy)pyridine
반응식
[F:1][C:2]([F:6])([F:5])[CH2:3][OH:4].[Br:7][C:8]1[CH:9]=[N:10][CH:11]=[C:12](Br)[CH:13]=1>>[Br:7][C:8]1[CH:9]=[N:10][CH:11]=[C:12]([O:4][CH2:3][C:2]([F:6])([F:5])[F:1])[CH:13]=1참가 물질
3
실험 절차
2,2,2-Trifluoroethanol and 3,5-dibromopyridine were processed as described in Example 7A except that the heating time was extended to 20 hours at 100° C. The reaction was quenched onto ice/water, extracted with ethyl ether, and concentrated. The residue was purified on silica gel (hexanes:ethyl acetate, 8:2) to provide the title compound as a colorless oil (70% yield). MS (DCI/NH3) m/z 256/258 (M+H)+.
후처리
- customThe reaction was quenched onto ice/water
- extractionextracted with ethyl ether
- concentrationconcentrated
- customThe residue was purified on silica gel (hexanes:ethyl acetate, 8:2)
출처 및 근거
- ORD 기록
- ord-07499d6b9a134aa88cc175ae34bf3296
- 출처 데이터셋
- uspto-grants-2004_10
- 특허 번호
- US06809105B2
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