Synthesis and transformations of 2,3-dioxo-2,3-dihydroimidazo [1,2-a]-benzimidazole derivatives |
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Authors: | A. M. Simonov Yu. V. Koshchienko G. M. Suvorova B. A. Tertov E. N. Malysheva |
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Affiliation: | (1) Scientific-Research Institute of Physical and Organic Chemistry, Rostov State University, Rostov-on-Don |
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Abstract: | 9-(H)Alkyl-2,3-dioxo-2,3-dihydroimidazo[1,2-a]benzimidazoles were synthesized by the action of oxalyl chloride on 2-amino-1(H)alkylbenzimidazoles and subsequent cyclization of the resulting 2-amino-1-(H)alkyl-3-chlorooxalylbenzimidazolium chlorides in the presence of triethylamine. The behavior of the synthesized benzimidazoles with respect to the action of alkalis, lithium aluminum hydride, and ethylmagnesium bromide was studied.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1391–1395, October, 1976. |
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