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
Article
  • 39 Downloads

Abstract

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.

Keywords

Nitrogen Ammonium Ester Hydroxide Organic Chemistry 

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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

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