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Grafting of Copper(I)–NHC species on MCM-41: Homogeneous versus heterogeneous catalysis

AutorGarcés, Karin ; Fernández-Álvarez, Francisco J. ; García-Orduña, P. ; Lahoz, Fernando J. ; Pérez-Torrente, Jesús J. ; Oro, Luis A.
Palabras claveCarbenes
Copper
Cycloaddition
Homogeneous catalysis
Hydrosilylation
Fecha de publicaciónago-2015
EditorWiley-VCH
CitaciónChemCatChem 7(16): 2501–2507 (2015)
ResumenThe copper(I) complexes [Cu(X){2,6-diisopropylphenyl–NHC–(CH2)3Si(OiPr)3}] (X=Cl (2 a); I (2 b), NHC=N-heterocyclic carbene) have been synthesized and characterized. Furthermore, the structure of 2 b has been confirmed by X-ray diffraction studies. Complex 2 a has been successfully anchored in MCM-41 to afford 2–MCM-41. The activity of both the homogeneous, 2 a, and heterogeneous, 2–MCM-41, catalysts in acetophenone hydrosilylation with HSiEt3 and [3+2] cycloaddition of benzyl azide and phenylacetylene has been investigated. The heterogeneous catalyst exhibits catalytic activity for the cycloaddition reaction though, unexpectedly, shows no catalytic activity for hydrosilylation.
Versión del editorhttp://dx.doi.org/10.1002/cctc.201500508
URIhttp://hdl.handle.net/10261/121711
DOI10.1002/cctc.201500508
ISSN1867-3880
E-ISSN1867-3899
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