1,3-dipolar cycloaddition of diazomethane to quinoid derivatives of pyrido[1,2-a]benzimidazole |
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| Authors: | O. Yu. Slabko N. V. Ageenko V. A. Denisenko V. A. Kaminskii |
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| Affiliation: | 1.Far Eastern Federal University,Vladivostok,Russia;2.“National center of Marine Biology”, Far East Branch,Russian Academy of Sciences,Vladivostok,Russia;3.Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch,Russian Academy of Sciences,Vladivostok,Russia |
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| Abstract: | Reactions of diazomethane with quinone mono(di)imines and methylidene quinone imines of pyrido[1,2-a]benzimidazole series occurs by the route of 1,3-dipolar cycloaddition and leads to the formation of quinoid compounds, in particular, previously unknown heterocyclic structures of indazolo[7',6':4,5]imidazo-[2,1-j]quinoline, indazolo[7',6':4,5]imidazo[2,1-e]acridine, indazolo[4',5':4,5]imidazo[2,1-j]quinoline, and indazolo[4',5':4,5]imidazo[2,1-e]acridine. |
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