Synthesis of photochromic benzopyrans annulated by 15(18)-crown-5(6) ether

S. V. Paramonov, O. A. Fedorova, V. P. Perevalov, V. Lokshin, V. Khodorkovsky

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The reaction of hydroxy-substituted benzo-15(18)-crown-5(6) ether or benzo-18-crown-6 ether with β-phenylcinnamaldehyde in the presence of titanium tetraethoxide yielded crown-annulated 2,2-diphenylbenzopyrans. The compounds are photochromic, and the spectral characteristics of their colored form are unusual for this class of chromenes.

Original languageEnglish
Pages (from-to)2381-2384
Number of pages4
JournalRussian Chemical Bulletin
Issue number11
StatePublished - 1 Nov 2008
Externally publishedYes


  • Bleaching kinetics
  • Chromene
  • Crown ether
  • Photochromism
  • UV-Vis absorption spectra

ASJC Scopus subject areas

  • Chemistry (all)


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