Abstract
An efficient, ZnO-NiO-Fe3O4 nano-composite catalyzed method has been developed for the ultrasonic irradiation synthesis of some 6-amino-3-methyl-4-aryl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile heterocycles in good to excellent yields. ZnO-NiO-Fe3O4 nanocomposite was characterized by XRD, FE-SEM, EDS, and DLS techniques. According to the XRD analysis, the sample consisted of three different phases: ZnO (hexagonal), NiO (cubic), and Fe3O4 (cubic). The average particle size of the sample is 68 nm.
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Acknowledgments
We gratefully acknowledge financial support from the Research Council of the Velayat University.
Disclosure statement
The authors declare that they have no conflict of interest to be reported.