Chemistry of Heterocyclic Compounds

, Volume 9, Issue 7, pp 805–808 | Cite as

3-Bromopyrylium salts

  • S. V. Krivun
  • S. V. Sayapina
  • S. N. Baranov


Three new methods have been proposed for the synthesis of 3-bromopyrylium salts. An unsaturated 1,5-diketone is converted into a 3-bromopyrylium salt by allyl bromination and the addition of bromine to the double bond. 3-Bromopyrone, obtained by the bromination of dibenzoylacetone is converted by treatment with Grignard reagents into 3-bromopyrylium salts. Similar compounds have also been synthesized by the pyrylation of aromatic and heterocyclic compounds with 3-bromo-4-chloropyrylium salts obtained from 3-bromopyrone.


Organic Chemistry Double Bond Bromine Allyl Heterocyclic Compound 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. 1.
    J. A. Berson, J. Amer. Chem. Soc., 74, 358 (1952).Google Scholar
  2. 2.
    M. Simalty-Siemiatycki and R. Fugnitto, Bull. Soc. China. Fr., 1944 (1965).Google Scholar
  3. 3.
    J. Arndt and B. Eistert, Ber., 58, 2318 (1925).Google Scholar
  4. 4.
    V. A. Zagorevskii and Z. D. Kirsanova, Khim. Geterotsikl. Soedin., 598 (1968).Google Scholar
  5. 5.
    S. V. Krivun, Khim. Geterotsikl. Soedin., 716 (1970).Google Scholar
  6. 6.
    S. V. Krivun, S. N. Baranov, and A. I. Buryak, Khim. Geterotsikl. Soedin., 1320 (1971).Google Scholar
  7. 7.
    S. V. Krivun, USSR Author's Certificate No. 268437; Byul. Izobret., No. 14 (1970).Google Scholar
  8. 8.
    A. I. Balaban, G. D. Mateescu, and M. Ellian, Tetrah., 18, 1083 (1962).Google Scholar

Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • S. V. Krivun
    • 1
  • S. V. Sayapina
    • 1
  • S. N. Baranov
    • 1
  1. 1.Donetsk Branch of Physical Organic Chemistry, Institute of Physical ChemistryAcademy of Sciences of the Ukrainian SSRUSSR

Personalised recommendations