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Azulene-substituted Pyridines and Pyridinium Salts. Synthesis and Structure. 2. Azulene-substituted Pyridinium salts

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Alexandru C. Razus, Liviu Birzan, Claudia Pavel, Oana Lehadus, Andreea Corbu, Filip Chiraleu and Cristian Enache

Editorial: Journal of Heterocyclic Chemistry, 44, p.251-60, 2007.

Rezumat:

4-Azulen-1-yl substituted 2,6-dimethyl-and 2,6-diphenyl-pyridinium salts are obtained in yields between 50 % and 100 % in the reaction of corresponding 4-azulen-1-yl-pyranylim salts and various amines. The effects of amine structure and of substitution in the heterocycle or at azulene moieties on the synthesis have been investigated. The uv-vis and NMR spectra of reaction products are examined and discussed in correlation with their structure.

Cuvinte cheie: azulene, saruri piridiniu, piridine // azulene, pyridinium salts, pyridine