Condensed imidazo-1, 2, 4-azines. 31. Synthesis and chemical transformations of substituted 1, 2, 4-triazepino [2, 3-a] benzimidazoles

VP Kruglenko, VP Gnidets, NA Klyuev…

文献索引：Kruglenko; Gnidets; Klyuev; Povstyanoi Chemistry of Heterocyclic Compounds, 2002 , vol. 38, # 5 p. 598 - 606

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摘要

Abstract By reaction of 1, 2-diaminobenzimidazole with 1, 3-diketones, acetoacetic ester and its derivatives, we have synthesized substituted 1, 2, 4-triazepino [2, 3-a] benzimidazole and 5H-1, 2, 4-triazepino [2, 3-a] benzimidazol-4-one. By reaction of 5H-2-methyl-1, 2, 4- triazepino [2, 3-a] benzimidazol-4-one with aromatic aldehydes or phenyldiazonium chloride, we have obtained 3-arylidene (phenylazo) derivatives of this compound, and by ...