Chitosan supported phthalocyanine complexes: Bifunctional catalysts with basic and oxidation active sites

The immobilisation of water-soluble metallophthalocyanine complexes on chitosan aerogel microspheres affords new bifunctional catalysts which have been used for the aerobic oxidation of β-isophorone. Chitosan is both the support of the metal complex and the organic base necessary for the reaction. T...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied catalysis. A, General General, 2006-08, Vol.309 (2), p.162-168
Hauptverfasser: Sorokin, Alexander B., Quignard, Françoise, Valentin, Romain, Mangematin, Stéphane
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The immobilisation of water-soluble metallophthalocyanine complexes on chitosan aerogel microspheres affords new bifunctional catalysts which have been used for the aerobic oxidation of β-isophorone. Chitosan is both the support of the metal complex and the organic base necessary for the reaction. These new materials have been characterized by nitrogen adsorption/desorption, scanning electron microscopy, diffuse reflectance UV–vis and 15N NMR spectroscopies. The influence of the reaction parameters on the efficiency of heterogeneous oxidation of β-isophorone, an important substrate for the preparation of flavour and fragrance fine chemicals has been studied. Combination of basic and oxidation sites in one solid material provided a more efficient heterogeneous clean oxidation of β-isophorone by O 2 without any waste.
ISSN:0926-860X
1873-3875
DOI:10.1016/j.apcata.2006.03.060