Kondensationen mit hydrazin-N,N′-dicarbonsäure-diamidin—XVII : 4,5-dialkylderivate des 2,7-diamino-imidazo[5,1-f]-as-triazins

In interactions of β-dicarbonyl compounds (2) with azodicarboxamidine (1), the primary reaction step consists of the addition of the active methylene group in 2 to the NN double bond in 1. Via the addition product 3 thus formed, 2,7-diamino-4,5-dialkyl-imidazo5,1-f]-as-triazines (4) are produced through condensation. 3,5-Heptanedione (2a), 4,6-nonanedione (2b), and 2,6-dimethyl-3,5- heptanedione (2c) have been used as β-dicarbonyl compounds.