Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/1822
Title: Chitin and Chitosan anchored methyltrioxorhenium: an innovative approach for selective heterogeneous catalytic epoxidations of olefins
Authors: Di Giuseppe, Andrea
Crucianelli, Marcello
Passacantando, Maurizio
Nisi, Stefano
Saladino, Raffaele
Keywords: Chitin;Chitosan;Heterogeneous catalysis;Hydrogen peroxide;Methyltrioxorhenium;Olefin oxidation;Polysaccharide
Issue Date: 2011
Publisher: Elsevier
Source: Di Giuseppe, A. et al. 2010. Chitin and Chitosan anchored methyltrioxorhenium: an innovative approach for selective heterogeneous catalytic epoxidations of olefins. "Journal of Catalysis" 276(2): 411-422.
Abstract: 
Novel complexes between methyltrioxorhenium (MTO) and natural polysaccharides like chitin and chitosan, or modified chitosan-bearing N-substituted acyl or alkyl pyridine moieties, were synthesized and used for the oxidation of alkenes, including acid-sensitive styrene derivatives, with urea hydrogen peroxide adduct (UHP) as primary oxidant. High conversions and yields of the corresponding epoxides were obtained. Silica-chitosan hybrid composites with increased surface area and mechanical properties were also prepared and used as MTO supports. A correlation on the role played by the different MTO-coordinating ligand sites of supports, on the experimental outcome of olefin catalytic oxidations, is discussed.
Description: 
L'articolo è disponibile sul sito dell'editore: http://www.sciencedirect.com
URI: http://hdl.handle.net/2067/1822
ISSN: 0021-9517
Appears in Collections:DABAC - Archivio della produzione scientifica

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