NDLI: Catalytic applications of magnetic nanoparticles functionalized using iridium N-heterocyclic carbene complexes

Content Provider	Royal Society of Chemistry (RSC)
Author	Mata, Jose A. Azua, Arturo Sabater, Sara Iglesias, Diego
Copyright Year	2015
Abstract	A synthetic modular methodology allows the preparation of catalytic materials based on magnetic nanoparticles with iridium N-heterocyclic carbene (NHC) complexes. Imidazolium salts containing a ketone/aldehyde as a pendant functional group are the key species prepared. The condensation reaction of the Cp*IrNHC–CHO compound with magnetic nanoparticles containing amine groups on the surface yields the covalent anchoring of the iridium complex to the surface of the magnetite. The catalytic properties have been evaluated in transfer hydrogenation. The iridium complexes and the material are active in the reduction of ketones using isopropanol as the solvent and hydrogen donor. The catalytic results reveal that the catalytic activity of the material and the molecular complex are equivalent. We have not observed any change in activity due to the support. The recyclability properties of the magnetic material have been evaluated. The results show that the catalyst activity is maintained for two runs. This work describes a simple methodology for anchoring molecular complexes on the surface of magnetic nanoparticles.
Starting Page	6437
Ending Page	6444
Page Count	8
File Format	HTM / HTML PDF
ISSN	11440546
Volume Number	39
Issue Number	8
Journal	New Journal of Chemistry
DOI	10.1039/c5nj00803d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Isopropyl alcohol Transfer hydrogenation Persistent carbene Condensation reaction Magnetite Hydrogen Covalent bond Iridium Aldehyde Ketone Solvent Functional group
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Catalysis

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