3-chloro-N-(2-fluorophenyl)propanamide → 8-Fluoro-1,2,3,4-tetrahydroquinolin-2-one
反応式
Cl[CH2:2][CH2:3][C:4]([NH:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=1[F:13])=[O:5].[Cl-].[Cl-].[Cl-].[Al+3]>>[F:13][C:8]1[CH:9]=[CH:10][CH:11]=[C:12]2[C:7]=1[NH:6][C:4](=[O:5])[CH2:3][CH2:2]2参加物
3
反応条件
- 温度
- 140 °C
実験手順
A mixture of 3-chloro-N-(2-fluorophenyl)propanamide (1-1, 17.2 g, 85.30 mmol) and aluminium trichloride (56.9 g, 427.0 mmol) was heated at 140° C. for 4 h under inert atmosphere. After cooling the reaction mixture down to 0° C., ice cold water (350 mL) was added slowly. The resulting precipitate was collected by filtration and washed with water and hexane. The crude compound was purified by flash chromatography on silica gel to obtain the title compound as a white solid. This intermediate was used directly in the next step without characterization.
後処理
- additionwas added slowly
- filtrationThe resulting precipitate was collected by filtration
- washwashed with water and hexane
- customThe crude compound was purified by flash chromatography on silica gel
出典と根拠
- ORDレコード
- ord-7d162daf2fe243e19f4af78062c54e49
- 出典データセット
- uspto-grants-2016_03
- 特許番号
- US09278093B2
反応ノート
読み込み中…