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Issue 9, 2011
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Imidazolium-derived organosilicas for catalytic applications

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Imidazolium salts are applied in different fields of research and have found a wide variety of applications owing to their distinctive properties. This review exclusively focuses on the various methods (grafting, surfactant-assisted sol–gel synthesis, bridged silsesquioxanes formation) described in recent years for the covalent immobilization of imidazolium salts on silica supports via C–Si bonds and on the catalytic applications of the resulting silica-supported imidazolium salts and NHC complexes. C–C bond formation reactions such as cross-coupling, olefin metathesis or organocatalyzed Knoevenagel condensations as well as functionalization reactions are described. This review is intended to help in inspiring future developments and interest in the growing field of catalysis by supported imidazolium salts and NHC complexes based on organosilicas.

Graphical abstract: Imidazolium-derived organosilicas for catalytic applications

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The article was received on 22 Jul 2011, accepted on 27 Aug 2011 and first published on 19 Sep 2011

Article type: Perspective
DOI: 10.1039/C1CY00287B
Catal. Sci. Technol., 2011,1, 1544-1563

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    Imidazolium-derived organosilicas for catalytic applications

    A. Monge-Marcet, R. Pleixats, X. Cattoën and M. Wong Chi Man, Catal. Sci. Technol., 2011, 1, 1544
    DOI: 10.1039/C1CY00287B

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