Design and Use of Nanostructured Single-Site Heterogeneous Catalysts for the Selective Transformation of Fine ChemicalsReportar como inadecuado




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1

CNR-Istituto di Scienze e Tecnologie Molecolari, Via C. Golgi 19, 20133, Milano, Italy

2

CNR-Istituto di Chimica dei Composti OrganoMetallici, via Madonna del Piano, Sesto F.no FI, Italy





*

Author to whom correspondence should be addressed.



Abstract Nanostructured single-site heterogeneous catalysts possess the advantages of classical solid catalysts, in terms of easy recovery and recycling, together with a defined tailored chemical and steric environment around the catalytically active metal site. The use of inorganic oxide supports with selected shape and porosity at a nanometric level may have a relevant impact on the regio- and stereochemistry of the catalytic reaction. Analogously, by choosing the optimal preparation techniques to obtain spatially isolated and well-characterised active sites, it is possible to achieve performances that are comparable to or, in the most favourable cases, better than those obtained with homogeneous systems. Such catalysts are therefore particularly suitable for the transformation of highly-functionalised fine chemicals and some relevant examples where high chemo-, regio- and stereoselectivity are crucial will be described.

Keywords: heterogeneous catalysis; single sites; fine chemistry; nanostructured oxides; selectivity heterogeneous catalysis; single sites; fine chemistry; nanostructured oxides; selectivity





Autor: Vladimiro Dal Santo 1, Francesca Liguori 2, Claudio Pirovano 1 and Matteo Guidotti 1,*

Fuente: http://mdpi.com/



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