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Supported La2O3 and MgO Nanoparticles as Solid Base Catalysts for Aldol Reactions While Suppressing Dehydration at Room Temperature

Authors

  • Dr. Anne Mette Frey,

    1. Department of Inorganic Chemistry and Catalysis, Debye Institute, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht (The Netherlands)
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    • Both authors contributed equally to this work

  • Dr. Sanjib Kumar Karmee,

    1. Gebouw voor Scheikunde, Afdeling Biotechnologie, Technische Universiteit Delft, Julianalaan 136, 2628 BL Delft (The Netherlands), Fax: (+31) 15-2781415
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    • Both authors contributed equally to this work

  • Prof. Krijn Pieter de Jong,

    1. Department of Inorganic Chemistry and Catalysis, Debye Institute, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht (The Netherlands)
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  • Dr. Johannes Hendrik Bitter,

    Corresponding author
    1. Department of Inorganic Chemistry and Catalysis, Debye Institute, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht (The Netherlands)
    • Department of Inorganic Chemistry and Catalysis, Debye Institute, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht (The Netherlands)
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  • Prof. Ulf Hanefeld

    Corresponding author
    1. Gebouw voor Scheikunde, Afdeling Biotechnologie, Technische Universiteit Delft, Julianalaan 136, 2628 BL Delft (The Netherlands), Fax: (+31) 15-2781415
    • Gebouw voor Scheikunde, Afdeling Biotechnologie, Technische Universiteit Delft, Julianalaan 136, 2628 BL Delft (The Netherlands), Fax: (+31) 15-2781415
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Abstract

La2O3 and MgO nanoparticles (3–4 nm) supported on carbon nanofibers were evaluated as solid base catalysts for the aldol reaction of benzaldehyde and acetone at room temperature. Both catalysts were found to be highly active and selective with respect to 4-hydroxy-4-phenylbutan-2-one, thus suppressing the elimination of H2O, which is a challenge for this reaction. La2O3 nanoparticles were more stable towards water, which makes them more applicable than MgO nanoparticles as a solid base catalyst for this reaction.

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