Abstract
3-(2-Benzimidazolyl)chromones with electron-donating and electron-withdrawing substituents and also chromones unsubstituted at position 2 were obtained by the reaction of alkyl-α-(2-benzimidazolyl)-2,4-dihydroxy-5-acetophenones with carboxylic acid anhydrides and chlorides. Reactions with cleavage and with retention of the pyrone ring were carried out.
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For Communication 19, see [1].
Taras Shevchenko Kiev University, Kiev. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1237–1244, September, 1997.
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Frasinyuk, M.S., Gorbulenko, N.V. & Khilya, V.P. Chemistry of the heteroanalogs of isoflavones. 20. Benzimidazole analogs of isoflavones. Chem Heterocycl Compd 33, 1078–1085 (1997). https://doi.org/10.1007/BF02253223
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DOI: https://doi.org/10.1007/BF02253223