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Synthesis of 4-Azulen-1-yl-pyrylium Salts 2- and 6-Substituted with either Naphthyls or Naphthyl and Phenyl Groups

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

Autori: ALEXANDRU C. RAZUS, LIVIU BIRZAN*, MIHAELA CRISTEA, VICTORITA TECUCEANU, CRISTIAN ENACHE

Editorial: Revista de Chimie (Bucuresti), 63(7), p.660-6, 2012.

Rezumat:

New 4-azulen-1-yl-pyrylium salts 2- and 6-substituted with either naphthyls or naphthyl and phenyl groups were obtained and characterized. The dyes were obtained by the reaction of the corresponding 4-pyrones with azulenes in the presence of POCl3. The starting pyrones were prepared by the cyclization of either 1,5-diaryl-1,3,5-triketones or 1-hydroxy-1,5-diaryl-pent-1-en-4-yn-3-ones. The possibility that the obtained pyrylium salts to interact with several anions was investigated.

Cuvinte cheie: azulene; naphthalene; pyrylium salts; 4-pyrones