INCAPE 05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
artículos
Título:
Synthesis of ionones by cyclization of pseudoione on solid acid catalysts
Autor/es:
V.K. DIEZ; C.R. APESTEGUÍA; J.I. DI COSIMO
Revista:
CATALYSIS LETTERS
Editorial:
Springer
Referencias:
Año: 2008 vol. 123 p. 213 - 219
ISSN:
1011-372X
Resumen:
Ionone synthesis (a,b and g isomers) by pseudoionone cyclization was studied on zeolite HBEA, Amberlyst 35W, SiO2-Al2O3, and unsupported and silica-supported heteropolyacids (HPA/SiO2). Ionone formation was preferentially promoted on strong Brønsted acid sites. A 79 % ionone yield was obtained on 58.5 wt. % HPA/SiO2 after 1.5 h of reaction at 383 K and 250 kPa. This value is similar to the best yields reported for the homogeneously-catalyzed reaction using sulfuric acid.
