Abstract
1,2-Diamino-4-phenylimidazolium perchlorate condenses with 2 mole of β-diketones to give pyrimido[2′,1′:2,3]imidazo[1,5-b]pyridazinium derivatives, while, like 1-amino-2-mercapto-4-phenylimidazole, to give imidazo[1,5-b]pyridazine derivatives. Salts of 1-benzylideneamino- and 1-(2-thiazolyl)-2-aminoimidazoles react with β-diketones to give substituted imidazo[1,2-a]pyrimidinium derivatives.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 846–850, June, 1974.
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Golubushina, G.M., Poshtaruk, G.N. & Chuiguk, V.A. Reaction of 1-amino-, 2-amino-, and 1,2-diaminoimidazoles with β-diketones. Chem Heterocycl Compd 10, 735–739 (1974). https://doi.org/10.1007/BF00480939
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DOI: https://doi.org/10.1007/BF00480939