Abstract
Some chemical characteristics and reactions of 3-phenyl-4-methylimidazo[5,1-b]benzimidazole (I) have been examined. It has been shown that I undergoes electrophilic substitution (hydroxymethylation, acetylation, nitrosation, and the Mannich and Vilsmeier reactions), the substituent entering at the 1-position. Cyanoethylation of I gives 1-cyanoethyl-3-phenyl-4-methylimidazo[5,1-b]benzimidazole.
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For part III, see [3].
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Aryuzina, V.M., Shchukina, M.N. Synthesis of substituted imidazo[5,1-b]benzimidazoles. Chem Heterocycl Compd 4, 806–807 (1968). https://doi.org/10.1007/BF00486969
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DOI: https://doi.org/10.1007/BF00486969