Russian Journal of Organic Chemistry

, Volume 42, Issue 1, pp 131–135 | Cite as

peri-Naphthylenediamines: XL. Solvatochromism of 1-methyl-4-[2-(1-naphthyl)ethenyl]pyridinium salts, including that containing “proton sponge” residue

  • A. F. Pozharskii
  • N. V. Vistorobskii
  • A. A. Bardin
  • E. A. Filatova


A number of 1-methyl-4-[2-(1-naphthyl)ethenyl]pyridinium salts were synthesized by condensation of 1,4-dimethylpyridinium iodide with naphthalene-1-carbaldehydes containing dimethylamino groups in positions 4 and 5. The obtained salts are characterized by negative solvatochromism which is the most pronounced for those possessing 1,8-bis(dimethylamino)naphthalene (“proton sponge”) and 1,2,2,3-tetramethyl-2,3-dihydroperimidine residues.


Organic Chemistry Pyridinium Iodide Sponge Naphthalene 
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Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • A. F. Pozharskii
    • 1
  • N. V. Vistorobskii
    • 1
  • A. A. Bardin
    • 1
  • E. A. Filatova
    • 1
  1. 1.Rostov State UniversityRostov-on-DonRussia

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