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Synthesis of 2-methyl-3-carbethoxypyrylium salts by the condensation of ethoxymethyleneacetoacetic ester with ketones

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

A method is proposed for the synthesis of 2-methyl-3-carbethoxypyrylium salts by the acid condensation of ethoxymethyleneacetoacetic ester with alkyl aryl, heterocyclic, and cyclic ketones or resorcinol. 2-Methyl-3-carbethoxy-6-phenylpyrylium perchlorate was condensed with benzaldehyde, and the product was subjected to acid hydrolysis and decarboxylation to 2-methyl-6-phenylpyrylium perchlorate to confirm the structure of the synthesized salts.

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Authors and Affiliations

  1. Rostov-on-Don State University, USSR

    G. N. Dorofeenko, E. P. Olekhnovich & L. I. Laukhina

Authors
  1. G. N. Dorofeenko
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  2. E. P. Olekhnovich
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  3. L. I. Laukhina
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Additional information

The IR spectra of mineral oil pastes of the synthesized samples were obtained with an IKS-14 spectrophotometer at 600–1800 cm−1 (NaCl prism).

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 435–437, April, 1971.

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Dorofeenko, G.N., Olekhnovich, E.P. & Laukhina, L.I. Synthesis of 2-methyl-3-carbethoxypyrylium salts by the condensation of ethoxymethyleneacetoacetic ester with ketones. Chem Heterocycl Compd 7, 405–407 (1971). https://doi.org/10.1007/BF00471470

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  • DOI: https://doi.org/10.1007/BF00471470

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