Autori: ALEXANDRU C. RAZUS, LIVIU BIRZAN*, MIHAELA CRISTEA, VICTORITA TECUCEANU, CRISTIAN ENACHE
Editorial: Revista de Chimie (Bucuresti), 63(7), p.660-6, 2012.
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