Preparation and characterization of zinc oxide nanoparticles supported on reduced graphene oxide and using as an effective catalyst for synthesis of l,4‐dihydropyrimidinones under solvent‐free conditions

Abstract

In this research, it was presented a simple and easy method for the preparation of graphene oxide (GO) supported ZnO nanoparticles with low cost, available precursor and their application as nanocatalyst for synthesis of l,4-dihydropyirimidinones. When GO combines with metal oxide nanoparticles such as ZnO shows very good properties. There is a wide range of chemical methods for the attachment of various functional groups. In this protocol, the GO was synthesized through Hummer's method. The structure and morphology properties of ZnO NPs@rGO nanocomposite were investigated by Fouriertransform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscope techniques. Also, the organic compounds were identified by melting point, FT-IR, and proton nuclear magnetic resonance analyses.

Sonocatalysis green synthesis of indeno[1,2‐b]indolone derivatives using CuFe2O4@CS‐SB nanocomposite as a reusable catalyst under mild conditions

“…In continuation of our ongoing research based on sonocatalysis reactions, 21–25 in this study, the design and preparation of novel CuFe 2 O 4 @CS‐SB nanocomposite and its use as a recoverable catalyst for the synthesis of indeno[1,2‐b]indolone derivatives under ultrasonic conditions were investigated.…”