Acetic Anhydride → N-[7-(3,5-dimethoxy-phenyl)-5-ethyl-3-methylsulfanyl-5H-pyrido[2,3-e]-1,2,4-triazin-6-ylidene]-acetamide
Reaktionsgleichung
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[C:22](=[NH:23])[N:21]([CH2:24][CH3:25])[C:14]3[N:15]=[C:16]([S:19][CH3:20])[N:17]=[N:18][C:13]=3[CH:12]=2)[CH:6]=[C:7]([O:9][CH3:10])[CH:8]=1.[C:26](OC(=O)C)(=[O:28])[CH3:27]>>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[C:22](=[N:23][C:26](=[O:28])[CH3:27])[N:21]([CH2:24][CH3:25])[C:14]3[N:15]=[C:16]([S:19][CH3:20])[N:17]=[N:18][C:13]=3[CH:12]=2)[CH:6]=[C:7]([O:9][CH3:10])[CH:8]=1Komponenten
3
Reaktionsbedingungen
- Temperatur
- 90 °C
Versuchsvorschrift
To 4.7 g (13.2 mmol) of 7-(3,5-dimethoxy-phenyl)-5-ethyl-3-methylsulfanyl-5H-pyrido[2,3-e]-1,2,4-triazin-6-ylideneamine was added 55 mL of acetic anhydride. The reaction mixture was warmed at 90° C. overnight, and the very dark red solution was concentrated under house vacuum at 40° C. to give a dark brown residue, N-[7-(3,5-dimethoxy-phenyl)-5-ethyl-3-methylsulfanyl-5H-pyrido[2,3-e]-1,2,4-triazin-6-ylidene]-acetamide. MS (APCI) (m+1)/z 400.1.