Chemistry of Heterocyclic Compounds

, Volume 9, Issue 7, pp 812–815 | Cite as

2-Benzopyrylium salts

XIII. Synthesis of 2-benzopyrylium salts by the reaction of alkyl and aryl benzyl ketones with acetals
  • G. N. Dorofeenko
  • S. M. Luk'yanov


The reaction of alkyl and aryl benzyl ketones with acetals of aliphatic, aromatic, and heterocyclic aldehydes in the presence of triphenylmethyl perchlorate leads to 2-benzopyrylium perchlorates with substituents in positions 1, 3, 6, and 7. The influence of substituents in the benzyl ketones and the acetals on the ease of formation of the salts has been studied. The mechanism of the reaction is discussed.


Acetal Organic Chemistry Aldehyde Ketone Benzyl 
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Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • G. N. Dorofeenko
    • 1
  • S. M. Luk'yanov
    • 1
  1. 1.Scientific-Research Institute of Physical and Organic ChemistryRostov State UniversityRostov-on-Don

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