1-(2-Chloro-8-fluoroquinolin-3-yl)ethanol → HCID 57707761、化合物
反応式
[Cl:1][C:2]1[C:11]([CH:12]([OH:14])[CH3:13])=[CH:10][C:9]2[C:4](=[C:5]([F:15])[CH:6]=[CH:7][CH:8]=2)[N:3]=1>[O-2].[O-2].[Mn+4].C1(C)C=CC=CC=1>[Cl:1][C:2]1[C:11]([C:12](=[O:14])[CH3:13])=[CH:10][C:9]2[C:4](=[C:5]([F:15])[CH:6]=[CH:7][CH:8]=2)[N:3]=1参加物
4
実験手順
To a round-bottomed flask containing toluene (183 mL) was added 1-(2-chloro-8-fluoroquinolin-3-yl)ethanol (6.20 g, 27.5 mmol) and manganese dioxide (19.1 g, 220 mmol, 8 eq). The reaction was heated to reflux for 2 h, cooled to rt, filtered and concentrated. The product was diluted with hexanes and filtered to give as a white solid 1-(2-chloro-8-fluoroquinolin-3-yl)ethanone (4.43 g, 72% yield). 1H NMR (400 MHz, CDCl3) δ ppm 8.40 (d, J=1.6 Hz, 1H), 7.71 (br d, J=8.2 Hz, 1H), 7.56 (td, J=7.8, 5.1 Hz, 1H), 7.54 (ddd, J=9.8, 7.8, 1.6 Hz, 1H). Mass Spectrum (ESI) m/e=223.9 (M+1).
後処理
- temperatureThe reaction was heated
- temperatureto reflux for 2 h
- filtrationfiltered
- concentrationconcentrated
- additionThe product was diluted with hexanes
- filtrationfiltered
出典と根拠
- ORDレコード
- ord-7185985600ea4d58848dce9bf708f12f
- 出典データセット
- uspto-grants-2014_05
- 特許番号
- US08716290B2
反応ノート
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