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Condensed Imidazo-1,2,4-azines. 31. Synthesis and Chemical Transformations of Substituted 1,2,4-Triazepino[2,3-a]benzimidazoles

โœ Scribed by V. P. Kruglenko; V. P. Gnidets; N. A. Klyuev; M. V. Povstyanoi


Book ID
110389412
Publisher
Springer US
Year
2002
Tongue
English
Weight
161 KB
Volume
38
Category
Article
ISSN
0009-3122

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Condensed imidazo-1,2,4-azines. 21. Synt
โœ V. P. Kruglenko; V. P. Gnidets; N. A. Klyuev; M. V. Povstyanoi ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Springer US ๐ŸŒ English โš– 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