Suzuki-Miyaura cross-coupling reaction between aryl halides and phenylboronic acids over gold nano-particles supported on MgO (or CaO) and other metal oxides

D. K. Dumbre, P. N. Yadav, S. K. Bhargava, V. R. Choudhary

    Research output: Contribution to journalArticlepeer-review

    43 Scopus citations

    Abstract

    Gold nano-particles-supported alkaline earth metal oxides, particularly MgO or CaO, show high catalytic activity in the Suzuki-Miyaura cross-coupling reaction in the presence of K2CO3 and DMF (as a solvent). The catalytic activity is strongly influenced by the nature or type of metal oxide support (viz. alkaline earth oxide, Group IIIA metal oxide, transition metal oxide, or rare earth oxide actinide oxide). It is also strongly influenced by the nature of aryl halide (aryl iodide, bromide, chloride, or fluoride), amount of K2CO3 in the reaction mixture and catalyst calcination temperature. Influence of reaction parameters viz. temperature and time and different substituents in aryl halides and/or phenylboronic acids on the biphenyl product yield in the reaction over Au/MgO catalyst has also been investigated. The catalyst showed excellent reusability in the reaction. Moreover, it is ligand-free and also has much lower cost than the commonly used homogeneous and heterogeneous Pd catalysts.

    Original languageBritish English
    Pages (from-to)134-140
    Number of pages7
    JournalJournal of Catalysis
    Volume301
    DOIs
    StatePublished - May 2013

    Keywords

    • Aryl halides
    • Au/MgO (or CaO) catalyst
    • Biphenyls
    • Gold nano-particles
    • phenylboronic acids
    • Suzuki-Miyaura coupling reaction

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