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Wiley, Journal of Heterocyclic Chemistry, 5(48), p. 1019-1027, 2011

DOI: 10.1002/jhet.684

Wiley-VCH Verlag, ChemInform, 7(43), p. no-no, 2012

DOI: 10.1002/chin.201207129

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4-(Azulen-1-yl) six-membered heteroaromatics substituted with thiophen-2-yl or furan-2-yl moieties in 2 and 6 positions

Journal article published in 2011 by Alexandru C. Razus, Liviu Birzan, Mihaela Cristea, Victorita Tecuceanu, Anamaria Hanganu ORCID, Cristian Enache
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Pyranylium perchlorates with azulen-1-yl moiety in 4-position and thiophen-2-yl or furan-2-yl in 2 and 6-positions were obtained by the substitution of 4-chloro corresponding salts with azulenes. The pyranylium salts are used as starting materials for the synthesis of pyridine and pyridinium salts. The products were characterized and for pyridines pKa was spectroscopically determined. Several attempts were made for pyridine complexation with metal cations as Hg2+ or Ag+. J. Heterocyclic Chem., (2011).