5'-fluoro-N-methyl-2'-methylsulphonylacetylformanilide → Flosequinoxan
Reaktionsgleichung
[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:12](=[O:18])[CH2:13][S:14]([CH3:17])(=[O:16])=[O:15])=[C:6]([CH:11]=1)[N:7]([CH3:10])[CH:8]=O>COCCO>[F:1][C:2]1[CH:11]=[C:6]2[C:5]([C:12](=[O:18])[C:13]([S:14]([CH3:17])(=[O:16])=[O:15])=[CH:8][N:7]2[CH3:10])=[CH:4][CH:3]=1Komponenten
3
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of 5'-fluoro-N-methyl-2'-methylsulphonylacetylformanilide (0.20 g), prepared in a similar manner to that described in Example 11, in 2-methoxyethanol (25 ml) was heated to reflux. Heating under reflux at 127° was continued for 2 hours. The mixture was allowed to cool to ambient temperature and then evaporated in vacuo to give 7-fluoro-1-methyl-3-methylsulphonyl-4-quinolone, m.p. 233.5°-235° (0.19 g).
Aufarbeitung
- temperaturewas heated to reflux
- temperatureHeating