A Novel Method for the Mynthesis of Benzothiazole Heterocycles Catalyzed by Copper- Diamsar Complex Loaded on SBA-15

Cu(II)-diamsar complex functionalized mesoporous SBA-15 silica supports was employed for the synthesisof benzothiazole heterocycles in solvent free conditions with excellent yields. The resulted catalyst is extraordinarilystable and inhibits leaching of the metal ion from the SBA-15 support. Furthermore, it showed good heterogeneouscatalytic activity in the synthesis of aforementioned heterocycles and also could be recycled from the reaction mixtureand used again for 6 times. The nature of the support after the grafting of Cu(II)-diamsar complex on the surface of SBA-15 nanochannels and successful grafting was examined by X-ray diffraction (XRD), Fourier transform infrared (FT-IR)studies

Keywords:

Heterogeneous catalysis , Cu(II)-diamsar complex , benzothiazole