Acetic Acid → HCID 59586742, Verbindung
Reaktionsgleichung
[F:1][C:2]1[C:7]([CH:8]([OH:11])[CH2:9][CH3:10])=[CH:6][CH:5]=[CH:4][N:3]=1.S(=O)(=O)(O)O.[OH-].[Na+].[C:19](O)(=[O:21])[CH3:20]>>[C:19]([O:11][CH:8]([C:7]1[C:2]([F:1])=[N:3][CH:4]=[CH:5][CH:6]=1)[CH2:9][CH3:10])(=[O:21])[CH3:20]Komponenten
5
Reaktionsbedingungen
- Temperatur
- 130 °C
Versuchsvorschrift
2.75 g (17.7 mmol) of the product from example 48A are dissolved in 12 ml of glacial acetic acid and admixed with 4 ml of concentrated sulfuric acid. The mixture is heated to 130° C. for 30 min and, after cooling, stirred into ice-water. A pH of 8 is established with sodium hydroxide solution, and then extraction is effected with dichloromethane. The combined organic phases are dried over sodium sulfate and concentrated cautiously. This affords 3.30 g (94% of theory) of the title compound, which is converted further without purification.