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      Synthesis and characterization of Zn(1-x)NixAl 2O4 spinels as a new heterogeneous catalyst of biginelli's reaction

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      Author
      Akika, F. Z.
      Kihal, N.
      Habila, T.
      Avramova I.
      Süzer, Şefik
      Pirotte, B.
      Khelili, S.
      Date
      2013
      Source Title
      Bulletin of the Korean Chemical Society
      Print ISSN
      0253-2964
      Electronic ISSN
      1229-5949
      Publisher
      Korean Chemical Society
      Volume
      34
      Issue
      5
      Pages
      1445 - 1453
      Language
      English
      Type
      Article
      Item Usage Stats
      152
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      146
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      Abstract
      Zn(1-x)NixAl2O4 (x = 0.0-1.0) spinels were prepared at 800 °C by co-precipitation method and characterized by infrared spectroscopy, X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. The specific surface area was determined by BET. SEM image showed nano sized spherical particles. XPS confirmed the valence states of the metals, showing moderate Lewis character for the surface of materials. The powders were successfully used as new heterogeneous catalysts of Biginelli’s reaction, a one-pot threecomponent reaction, leading to some dihydropyrimidinones (DHPMs). These new catalysts that produced good yields of DHPMs, were easily recovered by simple filtration and subsequently reused with persistent activity, and they are non-toxic and environmentally friendly. The optimum amount of catalyst is 20% by weight of benzaldehyde derivatives, while the doping amount has been found optimal for x = 0.1.
      Keywords
      Biginelli's reaction
      Catalytic properties
      Spinel
      XPS
      XRD
      Permalink
      http://hdl.handle.net/11693/20963
      Published Version (Please cite this version)
      http://dx.doi.org/10.5012/bkcs.2013.34.5.1445
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