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    Niobium(v) chloride and imidazolium bromides as efficient dual catalyst systems for the cycloaddition of carbon dioxide and propylene oxide

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    Type
    Article
    Authors
    Wilhelm, Michael E.
    Anthofer, Michael H.
    Reich, Robert M.
    D’Elia, Valerio cc
    Basset, Jean-Marie cc
    Herrmann, Wolfgang A.
    Cokoja, Mirza
    Kühn, Fritz
    KAUST Department
    Chemical Science Program
    KAUST Catalysis Center (KCC)
    Physical Science and Engineering (PSE) Division
    Date
    2014
    Permanent link to this record
    http://hdl.handle.net/10754/577047
    
    Metadata
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    Abstract
    The application of niobium(v) chloride and several imidazolium bromides as catalyst systems for the cycloaddition of propylene oxide (PO) with carbon dioxide to propylene carbonate (PC) is reported. A set of 31 different imidazolium bromides has been synthesized with varying substituents at all five imidazolium ring atoms, of which 17 have not been reported before. The impact of different substitution patterns (steric and electronic changes and solubility in PO) at the imidazolium ring on the catalytic activity was investigated. The optimisation of the catalyst structure allows for the valorisation of carbon dioxide under mild reaction conditions with high reaction rates in very good yield and selectivity for PC. This journal is © the Partner Organisations 2014.
    Citation
    Wilhelm, M. E., Anthofer, M. H., Reich, R. M., D’Elia, V., Basset, J.-M., Herrmann, W. A., … Kühn, F. E. (2014). Niobium(v) chloride and imidazolium bromides as efficient dual catalyst systems for the cycloaddition of carbon dioxide and propylene oxide. Catal. Sci. Technol., 4(6), 1638–1643. doi:10.1039/c3cy01057k
    Sponsors
    MEW, MHA and RMR thank the TUM Graduate School for financial support. The authors thank T. Hofmann for experimental assistance.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Catalysis Science & Technology
    DOI
    10.1039/C3CY01057K
    ae974a485f413a2113503eed53cd6c53
    10.1039/C3CY01057K
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

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