Abstract
The acylation of 1-methyl-2-(2′-furyl)- and 1-methyl-2-(2′-thienyl)benzimidazoles was studied. A convenient method for the formylation of the furan and thiophene rings by the action of urotropin in polyphosphoric acid (PPA) was found. Acylation of the furan and thiophene rings was realized by the action of acetic acid and aromatic carboxylic acids in PPA.
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See [1] for communication 4.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1311–1313, October, 1983.
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El'chaninov, M.M., Simonov, A.M. & Oleinikova, L.Y. Research on the chemistry of 2-hetarylbenzimidazoles. 5. Acylation of 1-methyl-2-(2′-hetaryl)benzimidazoles. Chem Heterocycl Compd 19, 1041–1043 (1983). https://doi.org/10.1007/BF00505746
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DOI: https://doi.org/10.1007/BF00505746