Acetic Anhydride → HCID 20535088, Verbindung
Reaktionsgleichung
[NH2:1][C:2]1[N:7]2[O:8][C:9](=[O:11])[N:10]=[C:6]2[N:5]=[C:4]([N:12]([CH2:16][CH:17]=[CH2:18])[CH2:13][CH:14]=[CH2:15])[N:3]=1.[C:19](OC(=O)C)(=[O:21])[CH3:20]>N1C=CC=CC=1>[CH2:13]([N:12]([CH2:16][CH:17]=[CH2:18])[C:4]1[N:3]=[C:2]([NH:1][C:19](=[O:21])[CH3:20])[N:7]2[O:8][C:9](=[O:11])[N:10]=[C:6]2[N:5]=1)[CH:14]=[CH2:15]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
6 g. of 7-amino-5-diallylamino-2H-[1,2,4]oxadiazolo[2,3-a]-s-triazin-2-one are stirred at room temperature for 18 hours with 60 ml. of absolute pyridine and 8 ml. of acetic acid anhydride. The solvents are distilled off at 40° C. and the residue is dissolved in 220 ml. of methylene chloride. The solution obtained is washed with 1-N-hydrochloric acid, dried over sodium sulfate and evaporated to dryness under reduced pressure. The residue is recrystallized from methylene chloride and diethyl ether, there being obtained N-{5-diallylamino-2-oxo-2H-[1,2,4]oxadiazolo[2,3-a]-s-triazin-7-yl}acetamide having a melting point of 164°-165° C.