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Chemistry of Heterocyclic Compounds

, Volume 8, Issue 8, pp 935–938 | Cite as

Synthesis of 4-alkoxybenzopyrylium salts and chromones

  • G. N. Dorofeenko
  • V. V. Tkachenko
Article

Abstract

The reaction of substituted o-hydroxyacetophenones with ethyl orthoformate in the presence of 70% perchloric acid gave 4-alkoxybenzopyrylium salts, which were converted to the corresponding chromones in almost quantitative yield on refluxing with water.

Keywords

Ethyl Organic Chemistry Perchloric Acid Quantitative Yield Chromones 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

  1. 1.
    G. N. Dorofeenko, V. V. Mezheritskii, and N. A. Lopatina, Khim. Geterotsikl. Soedin., No. 2, 238 (1970).Google Scholar
  2. 2.
    G. N. Dorofeenko and N. A. Lopatina, Khim. Geterotsikl. Soedin., 160 (1971).Google Scholar
  3. 3.
    V. V. Mezheritskii and G. N. Dorofeenko, Zh. Obshch. Khim., 40, 2459 (1970).Google Scholar
  4. 4.
    Dictionary of Organic Compounds, Oxford University Press (1966).Google Scholar
  5. 5.
    E. David and S. Kostanecki, Ber., 35, 2549 (1902).Google Scholar
  6. 6.
    S. Kostanecki and I. C. Ruijter de Wildt, Ber., 35, 865 (1902).Google Scholar

Copyright information

© Consultants Bureau 1974

Authors and Affiliations

  • G. N. Dorofeenko
    • 1
  • V. V. Tkachenko
    • 1
  1. 1.Scientific-Research Institute of Physical and Organic ChemistryRostov State UniversityRostovon-Don

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