Chemistry of Heterocyclic Compounds

, Volume 12, Issue 10, pp 1097–1099 | Cite as

Synthesis of pyrylium salts and heterocyclic nitrogen bases from cycloalkenylacetic acid esters

  • G. P. Safaryan
  • G. N. Dorofeenko


2-Alkyl-6-methoxy-3,4-tetramethylene- and 3,4-pentamethylenepyrylium perchlorates were obtained by acylation of cycloalkenylacetic acid esters with aliphatic acid anhydrides. 2-Methyl-6-methoxy[2,3-c]cholestanopyrylium perchlorate was similarly synthesized. 2-Alkyl-3,4-tetramethylene-6-pyridones were isolated by treatment of 2-alkyl-6-methoxy-3,4-tetramethylene-pyrylium perchlorates with excess concentrated ammonium hydroxide. 2-Methyl-3,4-pentamethylene-6-aminopyridine was obtained by the action of excess concentrated ammonium hydroxide on 2-methyl-6-methoxy-3,4-pentamethylenepyrylium perchlorate.


Nitrogen Ammonium Ester Hydroxide Organic Chemistry 
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.
    G. N. Dorofeenko, V. I. Dulenko, and L. V. Dulenko, Zh. Obshch. Khim.,34, 3116 (1964).Google Scholar
  2. 2.
    G. N. Dorofeenko, G. N. Safaryan, and V. I. Dulenko, Zh. Obshch. Khim.,36, 811 (1966).Google Scholar
  3. 3.
    G. N. Dorofeenko and V. G. Korobkova, Khim. Geterotsikl. Soedin., No. 12, 1601 (1971).Google Scholar
  4. 4.
    N. S. Vul'fson (editor), Preparative Organic Chemistry [in Russian], Khimiya, Moscow (1964), p. 832.Google Scholar
  5. 5.
    A. da S. Campos-Neves, Bol. Escol. Farm. Univ. Coimbra,19–20, 207 (1959-1960); Chem. Abstr.,56, 4821 (1962).Google Scholar

Copyright information

© Plenum Publishing Corporation 1977

Authors and Affiliations

  • G. P. Safaryan
    • 1
  • G. N. Dorofeenko
    • 1
  1. 1.Scientific-Research Institute of Physical and Organic ChemistryRostov State UniversityRostov-on-Don

Personalised recommendations