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Study of the prototropic tautomerism in the 1,2,4-triazino[2,3-a]benzimidazol-(4h)-3-one system

✍ Scribed by N. A. Klyuev; M. V. Povstyanoi; V. M. Orlov; V. P. Gnidets; V. P. Kruglenko


Book ID
118287799
Publisher
Springer US
Year
1992
Tongue
English
Weight
438 KB
Volume
28
Category
Article
ISSN
0009-3122

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Condensed imidazo-1,2,4-azines. 21. Synt
✍ V. P. Kruglenko; V. P. Gnidets; N. A. Klyuev; M. V. Povstyanoi πŸ“‚ Article πŸ“… 1989 πŸ› Springer US 🌐 English βš– 352 KB

UDC 547.873'785.5'735 f 724.07:543.51 2-[(8-Ethyl-, arylimino)phenethyl]-l,2,4-triazino[2,3-a]benzimidazoles were obtained by reaction of 2-aroylmethyl-l,2,4-triazino[2,3-a]benzimidazol-4H-3-ones with ethyl(aryl)amines or urea. By the action of phosphorus oxychloride, these benzimidazoles cyclize in