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In this study, new indenopyrimidin-1,2,4-triazol derivatives were synthesized in high yields using multicomponent reactions of ninhydrins, guanidine, alkyl bromides, aldehydes and hydrazonoyl chloride in the presence of Fe 3 O 4 /CuO/ZnO@Multi-Walled Carbon Nanotube Magnetic Nanocomposites (Fe 3 O 4 /CuO/ZnO@MWCNT MNCs) as a high performance catalyst in water at room temperature. The Fe 3 O 4 /CuO/ZnO@MWCNT MNCs was prepared using  Petasites hybridus  rhizome water extract as a green media and moderate base. This procedure had some benefits such as short reaction time, products with excellent yields, simple catalyst and products separation. The Fe 3 O 4 /CuO/ZnO@MWCNT MNCs was showed a good improvement in the yield of the product and displayed significant reusable activity as well. Investigation of antioxidant ability of synthesized compounds using radical trapping of diphenyl-picrylhydrazine (DPPH) and ferric reduction power experiment were another purpose in this research.

Fe3O4/CuO/ZnO@MWCNT MNCs Promoted the Green Synthesis of Indenopyrimidin-1,2,4-Triazoles as Hybrid Molecules