Butyl nitrite → HCID 20403190, Verbindung
Reaktionsgleichung
[CH3:1][C:2]1[N:3]=[C:4]2[C:9]([O:10][CH2:11][C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)=[N:8][CH:7]=[CH:6][N:5]2[CH:18]=1.[N:19](OCCCC)=[O:20]>O1CCOCC1>[CH3:1][C:2]1[N:3]=[C:4]2[C:9]([O:10][CH2:11][C:12]3[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=3)=[N:8][CH:7]=[CH:6][N:5]2[C:18]=1[N:19]=[O:20]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of 14.2 g 2-methyl-8-phenylmethoxyimidazo[1,2-a]pyrazine, 129.3 g n-butyl nitrite and 142 ml p-dioxane was heated under reflux for 0.5 hr. and decanted from a small amount of gum. The supernatant solution was stirred under vacuum (40°/0.1 mm) and the residue azeotroped with cyclohexane to give 2-methyl-3-nitroso-8-phenylmethoxyimidazo[1,2-a]pyrazine as a soft, green solid which was identified by pmr and ms and immediately reduced (as in Example 6) without further purification.