Condensed imidazo-1,2,4-azines. 8. Synthesis of 5H-3,4-dihydroimidazo[1,2-b]-1,2,4-triazepine derivatives

Autor: Orlov, V. D., Papiashvili, I. Z., Povstyanoi, M. V., Idzikovskii, V. A., Tsyguleva, O. M.
Zdroj: Chemistry of Heterocyclic Compounds; January 1983, Vol. 19 Issue: 1 p83-87, 5p
Abstrakt: 2,4,7-Triaryl-5H-3,4-dihydroimidazo[1,2-b]-1,2,4-triazepines were obtained on the basis of 4-phenyl-1,2-diaminoimidazole and chalcones. Their IR, UV, PMR, and mass spectra are discussed. It is shown that the more basic 1-NH2 group of the starting diamine participates in the formation of the azomethine bond of the seven-membered heteroring. The seven-membered ring has a “quasi-boat” form in which the 2- and 4-aromatic substituents occupy equatorial positions.
Databáze: Supplemental Index
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