Abstract

Rakhshan Hakimelahi^1,2and Mohammad H. Mousazadeh³

DOI : http://dx.doi.org/10.13005/ojc/340109

zinc oxid nano tubes have attracted much attention in recent years. Hardly, direct uses of zinc oxid nano tubes which modified by SiO₂ as a catalyst with recyclability has been applied for several organic reactions. The average particle size of ZnO catalysts is 57 nm, it has been characterized by XRD. Nano tubes surfaces have high density defects. The condensation of isatoic anhydride and an aromatic aldehyde exposed to ammonium acetate in the presence of few amounts of zinc oxid nano tubes modified by SiO₂ as a catalyst can be a simple, suitable and efficient method for the quinazolin derivatives synthesis, the positive aspect is recyclable ability of the catalyst. It is clear that some characterization of catalyst such as combination of the small particle size and high-density surface defects of zinc oxid nano tubes which modified by SiO₂ is the basic reason for unique catalytic activity of the catalyst. The practical and simple method led to unbeatable yields of the 2,3-Di hydro quinazolin-4(1H)-one derivatives at short times under mild conditions.

Reusable Catalyst; 2,3-Dihydroquinazolin-4(1H)-one Derivatives; Zinc Oxid Nanotubes; Sio2

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