Nitric Acid → 5-t-Butyl-4-nitro-3-propionylaminopyrazole
Reaktionsgleichung
[C:1]([C:5]1[NH:9][N:8]=[C:7]([NH:10][C:11](=[O:14])[CH2:12][CH3:13])[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[N+:15]([O-])([OH:17])=[O:16]>S(=O)(=O)(O)O>[C:1]([C:5]1[NH:9][N:8]=[C:7]([NH:10][C:11](=[O:14])[CH2:12][CH3:13])[C:6]=1[N+:15]([O-:17])=[O:16])([CH3:4])([CH3:3])[CH3:2]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
2 g (0.01 mole) of 5-t-butyl-3-propionylaminopyrazole as prepared in Example 5 was dissolved in 20 ml of concentrated sulfuric acid, and the solution was cooled to 0° C. 0.6 ml of fuming nitric acid was added dropwise thereto, and the mixture was allowed to react for one hour at 0° C. After completion of the reaction, the reaction solution was poured into a large amount of ice, whereby crystals were precipitated. The crystals were collected by filtration and washed with water to obtain 1 g of 5-t-butyl-4-nitro-3-propionylaminopyrazole.