Title of article :
Suzuki–Miyaura cross-coupling reaction between aryl halides and phenylboronic acids over gold nano-particles supported on MgO (or CaO) and other metal oxides
Author/Authors :
D.K. Dumbre، نويسنده , , P.N. Yadav، نويسنده , , S.K Bhargava، نويسنده , , V.R. Choudhary، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
7
From page :
134
To page :
140
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.
Keywords :
Bifunctional catalysis , Hydrogenolysis , Dehydrogenation , CO adsorption , Coke , MFI zeolite
Journal title :
Journal of Catalysis
Serial Year :
2013
Journal title :
Journal of Catalysis
Record number :
1224215
Link To Document :
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