Chemistry of Heterocyclic Compounds

, Volume 26, Issue 9, pp 1060–1065 | Cite as

Reaction of 3-formylchromone with methyl- and methylene-active azocycles

  • A. I. Tolmachev
  • L. M. Shulezhko
  • Yu. L. Briks
  • A. D. Kachkovskii
Article
  • 56 Downloads

Abstract

The reaction of 3-formylchromone with quaternary salts of nitrogen heterocycles containing active methyl or methylene groups was investigated. It is shown that the compounds obtained can be used in the synthesis of merocyanine dyes containing an o-hydroxybenzoyl substituent in the polymethine chain. Dicarbocyanines with such a substituent were not isolated, evidently because of the high electrophilicity of the polymethine chain and the ease of formation of a six-membered heteroring.

Keywords

Nitrogen Methyl Organic Chemistry Active Methyl Nitrogen Heterocycle 

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Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • A. I. Tolmachev
    • 1
  • L. M. Shulezhko
    • 1
  • Yu. L. Briks
    • 1
  • A. D. Kachkovskii
    • 1
  1. 1.Institute of Organic ChemistryAcademy of Sciences of the Ukrainian SSRKiev

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