Ethyl bromopyruvate → 2-Amino-carbethoxycarbonylmethyl-quinoxalinium bromide
Reaktionsgleichung
[NH2:1][C:2]1[CH:11]=[N:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]=1.[Br:12][CH2:13][C:14](=[O:20])[C:15]([O:17][CH2:18][CH3:19])=[O:16]>C(COC)OC>[Br-:12].[NH2:1][C:2]1[CH:11]=[N:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N+:3]=1[CH2:13][C:14]([C:15]([O:17][CH2:18][CH3:19])=[O:16])=[O:20]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of 0.9 g of 2-amino-quinoxaline, 1.25 g of ethyl bromopyruvate and 25 ml of dimethoxyethane was stirred overnight at room temperature and was filtered to obtain 1.58 g of 2-amino-carbethoxycarbonylmethyl-quinoxalinium bromide in the form of a pale yellow crystalline solid.