Synthesis and structure elucidation of chromogenic calix[4]arene indophenols capped by carboxamide bridges

Barbara Balázs, Gábor Tóth, Gyula Horváth, Alajos Grün, Viktor Csokai, László Töke, István Bitter

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27 Citations (Scopus)

Abstract

Calix[4]arenes capped by di- and triamide bridges on the lower rim were used to synthesize 2,3,4,5 chromogenic molecules supplied with indophenol indicator unit(s). The endo/exo quinoid tautomerism of the chromophore and the mechanism of the coloration process were studied by NMR spectroscopy.

Original languageEnglish
Pages (from-to)61-71
Number of pages11
JournalEuropean Journal of Organic Chemistry
Issue number1
Publication statusPublished - Jan 1 2001

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Keywords

  • Calixarenes
  • Chromophores
  • Macrocycles
  • NMR spectroscopy
  • Tautomerism

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry

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