Abstract
The reduction of 1-benzylideneamino-2,5-dialkyl-3,6-diphenylimidazo[1,2-a]imidazoles with zinc in acetic acid gave the corresponding 1H-imidazo[1,2-a]imidazoles, which are oxidized by air oxygen or by irradiation with UV light to give 1H-imidazo[1,2-a]imidazole 7-oxides. The latter were also obtained by the action of nitric acid on 1-amino-2,5-dialkyl-3,6-diphenylimidazo[1,2-a]imidazoles. The UV, IR, PMR, mass, and x-ray electron spectra of the synthesized compounds were studied.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 384–387, March, 1982.
In conclusion, the authors thank I. A. Krasavin for providing us with samples of oxides VII and VIII and T. M. Ivanov and R. V. Linko for recording the x-ray electron spectra.
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Ivashchenko, A.V., Lazareva, V.T., Shmelev, L.V. et al. Synthesis and investigation of imidazo[1,2-a]imidazole derivatives. Chem Heterocycl Compd 18, 290–293 (1982). https://doi.org/10.1007/BF00522132
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DOI: https://doi.org/10.1007/BF00522132