Ethylamine → 1-Benzyl-3-bromo-5-ethylamino-4-nitropyrazole
Reaktionsgleichung
[CH2:1]([N:8]1[C:12](Br)=[C:11]([N+:14]([O-:16])=[O:15])[C:10]([Br:17])=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:18]([NH2:20])[CH3:19]>>[CH2:1]([N:8]1[C:12]([NH:20][CH2:18][CH3:19])=[C:11]([N+:14]([O-:16])=[O:15])[C:10]([Br:17])=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Komponenten
3
Versuchsvorschrift
3.61 (10 mmoles) of 1-benzyl-3,5-dibromo-4-nitropyrazole are heated at 60° C. in 120 ml of a 30-percent aqueous ethylamine solution for 1 hour. After cooling, the product separates in the form of colorless crystals with a melting point of 122° C. 2.88 g (89 percent of theory) of 1-benzyl-3-bromo-5-ethylamino-4-nitropyrazole are obtained.
Aufarbeitung
- temperatureAfter cooling