Peg Supported Cu-Mo Mixed Metal Oxide (CuO-MoO 3@PEG): A Highly Efficient Catalyst for the Synthesis of Pyrimidine Diones

Polyethylene glycol-6000 supported copper-molybdenum nanoparticles (CuO-MoO₃@PEG) have been synthesized as a highly efficient, novel and recyclable heterogeneous catalyst by simple impregnation method. The catalyst was characterized well by FTIR, XRD, SEM, EDX, elemental mapping, TEM, TGA, EPR, ICP-AES and UV-visible DRS analyses. The catalyst was successfully applied for synthesizing new pyrimidine diones derivatives and β-enaminones which have important biological activity. The catalyst was found to be efficient up to five cycles with minor loss in catalytic activity. The recovered catalyst (5th run) retained its structure integrity was confirmed by FTIR, XRD, SEM, TEM, TGA, ICP-AES analyses. The products (pyrimidine diones derivatives) were obtained in excellent yield (92%) and shorter reaction time period (30-35 min).