Heterogeneous Fe supported catalysts prepared by grafting Fe(III) acetylacetonate under basic conditions onto pure silica and a series of modified silicas with variable amount of zirconia were prepared. Their characterization showed the presence of Fe3+ species, with complete surface dispersion of the iron-phase and without any Fe3O4 presence. These materials exhibit not only excellent activity in the liquid phase isomerization of a-pinene oxide but also good selectivity towards campholenic aldehyde, thus showing their Lewis acid nature.
A new, Fe based, heterogeneous Lewis acid : selective isomerization of a-pinene oxide / N. Ravasio, F. Zaccheria, C. Messi, A. Gervasini. - In: CATALYSIS COMMUNICATIONS. - ISSN 1566-7367. - 9:6(2008), pp. 1125-1127. [10.1016/j.catcom.2007.10.019]
A new, Fe based, heterogeneous Lewis acid : selective isomerization of a-pinene oxide
F. ZaccheriaSecondo
;C. MessiPenultimo
;A. GervasiniUltimo
2008
Abstract
Heterogeneous Fe supported catalysts prepared by grafting Fe(III) acetylacetonate under basic conditions onto pure silica and a series of modified silicas with variable amount of zirconia were prepared. Their characterization showed the presence of Fe3+ species, with complete surface dispersion of the iron-phase and without any Fe3O4 presence. These materials exhibit not only excellent activity in the liquid phase isomerization of a-pinene oxide but also good selectivity towards campholenic aldehyde, thus showing their Lewis acid nature.
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