Host (dealuminated Y zeolite)–guest (zirconium tetraphenylporphyrin) nanocomposite materials. An efficient catalyst in the oximation of aldehydes - 11/03/17
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Abstract |
In this research, zirconium tetraphenylporphyrin encapsulated into dealuminated Y zeolite (ZrTPP–DAZY) was prepared through a template synthesis method. This heterogeneous catalyst was characterized by XRD, FT-IR, DRS, UV–Vis, EDX and FESEM techniques. The amount of ZrTPP in the nanocage of dealuminated Y zeolite was estimated to be 0.0156 g/g of support. This catalytic system was employed for an efficient oximation of aldehydes under magnetic stirring conditions at room temperature and the corresponding products were obtained in 50–90% yields. This catalytic system also indicated good shape selectivity towards linear aldehydes. ZrTPP–DAZY was reused several times without any significant loss in catalytic activity.
Le texte complet de cet article est disponible en PDF.Keywords : Zirconium tetraphenylporphyrin, Dealuminated zeolite Y, Ship-in-bottle, Oximation, Host–guest nanocomposite
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Vol 20 - N° 4
P. 395-401 - avril 2017 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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