Catalytic Application of Copper Complex Prepared by a NNN Pincer Ligand Supported on Silica Nanoparticles Using first Generation of Polyamidoamine Dendrimers

Document Type : Original Article

Authors

Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran

Abstract

In this research, a catalytic system using a copper complex supported on silica nanoparticles was used as a nanocatalyst with high efficiency to enhance catalytic click reactions. At first, polyamidoamine dendrimers were synthesized using methyl acrylate and ethylene diamine by divergent synthesis method on aminopropyl grafted silica support. Then, modified silica-supported dendrimers were used as an organic-inorganic hybrid substrate to immobilize the NNN pincer ligand. The pincer ligand was formed by reacting the functionalized support with cyanuric chloride and then reacting with 2-aminopyridine. Next, through the reaction of copper chloride with the stabilized ligand, the copper (II) complex was formed on this compound. The prepared compound was used as a catalyst in azide-alkyne cycloaddition click reactions. The obtained data showed that in the optimized conditions: water-ethanol solution (1:1), catalyst mole percentage of 0.5, 60 °C, and time of 40 min, the reaction efficiency was obtained to be 97%.

Keywords

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References

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Journal of Advanced Materials in Engineering (Esteghlal)
Volume 42, Issue 4
March 2024
Pages 77-91

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