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|Type:||Artigo de periódico|
|Title:||Aerobic oxidation of monoterpenic alcohols catalyzed by ruthenium hydroxide supported on silica-coated magnetic nanoparticles|
|Author:||COSTA, Vinicius V.|
JACINTO, Marcos J.
ROSSI, Liane M.
GUSEVSKAYA, Elena V.
|Abstract:||Ruthenium hydroxide supported on silica-coated magnetic nanoparticles was shown to be an efficient heterogeneous catalyst for the liquid-phase oxidation of a wide range of alcohols using molecular oxygen as a sole oxidant in the absence of co-catalysts or additives. The material was prepared through the loading of the amino modified support with ruthenium(III) ions from an aqueous solution of ruthenium(III) chloride followed by treatment with sodium hydroxide to form ruthenium hydroxide species. Characterizations suggest that ruthenium hydroxide is highly dispersed on the support surface, with no ruthenium containing crystalline phases being detected. Various carbonylic monoterpenoids important for fragrance and pharmaceutical industries can be obtained in good to excellent yields starting from biomass-based monoterpenic alcohols, such as isobomeol, perillyl alcohol, carveol, and citronellol. The catalyst undergoes no metal leaching and can be easily recovered by the application of an external magnet and re-used. (C) 2011 Elsevier Inc. All rights reserved.|
|Editor:||ACADEMIC PRESS INC ELSEVIER SCIENCE|
|Citation:||JOURNAL OF CATALYSIS, v.282, n.1, p.209-214, 2011|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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