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Synthesis of pyrylium salts by condensation of Β-chlorocinnamaldehydes with carbonyl compounds

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

A method is proposed for the synthesis of unsymmetrical unsubstituted pyrylium salts by condensation of Β-chlorocinnamaldehydes with methyl and methylene ketones and Β-dicarbonyl compounds in the presence of HClO4 or Lewis acids. The probable scheme of the reaction is examined.

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Authors and Affiliations

  1. Rostov State University, Scientific-Research Institute of Physical and Organic Chemistry, Rostovon-Don

    G. N. Dorofeenko & A. I. Pyshchev

Authors
  1. G. N. Dorofeenko
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  2. A. I. Pyshchev
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1031–1035, August, 1974.

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Dorofeenko, G.N., Pyshchev, A.I. Synthesis of pyrylium salts by condensation of Β-chlorocinnamaldehydes with carbonyl compounds. Chem Heterocycl Compd 10, 898–901 (1974). https://doi.org/10.1007/BF00487104

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  • DOI: https://doi.org/10.1007/BF00487104

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