Ethanol → Ethyl 2-fluoro-3-methylbenzoate
Reaktionsgleichung
[F:1][C:2]1[C:10]([CH3:11])=[CH:9][CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=[O:5].S(=O)(=O)(O)O.[CH3:17][CH2:18]O>>[F:1][C:2]1[C:10]([CH3:11])=[CH:9][CH:8]=[CH:7][C:3]=1[C:4]([O:6][CH2:17][CH3:18])=[O:5]Komponenten
4
Reaktionsbedingungen
- Temperatur
- 90 °C
Versuchsvorschrift
2-Fluoro-3-methylbenzoic acid (8.0 g) was mixed with EtOH (100 ml), and concentrated sulfuric acid was added thereto, followed by stirring at 90° C. overnight. The reaction mixture was concentrated under reduced pressure, and EtOAc and water were then added thereto. The organic layer was washed with a saturated aqueous sodium hydrogen carbonate solution, then dried over Na2SO4, and concentrated under reduced pressure to obtain ethyl 2-fluoro-3-methylbenzoate (7.84 g).