Chemistry of Heterocyclic Compounds

, Volume 20, Issue 12, pp 1364–1369 | Cite as

Tautomerism of 6- and 2-(arylazo)-3-hydroxypyridines in aprotic polar solvents

  • K. M. Dyumaev
  • L. A. Osmolovskaya
  • B. A. Korolev
Article
  • 25 Downloads

Abstract

On the basis of calculations of the basicities of possible protonation sites, electronic spectra, and potentiometric titration, it has been shown that 6- and 2-(arylazo)-3-hydroxypyridines exist in nitromethane and acetonitrile in the hydroxyazo-form, and are protonated at the pyridine nitrogen atom.

Keywords

Nitrogen Organic Chemistry Acetonitrile Titration Pyridine 

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Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • K. M. Dyumaev
    • 1
  • L. A. Osmolovskaya
    • 1
  • B. A. Korolev
    • 1
  1. 1.Research Institute for Organic Intermediates and DyesMoscow

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