Fabrication of copper(II)-coated magnetic core-shell nanoparticles Fe3O4@SiO2-2-aminobenzohydrazide and investigation of its catalytic application in the synthesis of 1,2,3-triazole compounds

Abstract

In the present work, an attempt has been made to synthesize the 1,2,3-triazole derivatives resulting from the click reaction, in a mild and green environment using the new copper(II)-coated magnetic core–shell nanoparticles Fe3O4@SiO2 modified by isatoic anhydride. The structure of the catalyst has been determined by XRD, FE-SEM, TGA, VSM, EDS, and FT-IR analyzes. The high efficiency and the ability to be recovered and reused for at least up to 6 consecutive runs are some superior properties of the catalyst.

XPS and structural studies of Fe3O4-PTMS-NAS@Cu as a novel magnetic natural asphalt base network and recoverable nanocatalyst for the synthesis of biaryl compounds

“…Afterwards, sodium natural asphalt sulfonate (Na-NAS) was synthesized utilizing the NASA and NaOH solution 9 , 19 . Moreover, Fe 3 O 4 -CPTM was synthesized according to the literature 15 . Subsequently, in order to synthesize Fe 3 O 4 -PTMS-NAS, sodium natural asphalt sulfonate (Na-NAS) was immobilized on the surface of Fe 3 O 4 -CPTMS MNPs.…”

“…Today, utilizing magnetic nanoparticles in the organic chemistry has been greatly increased because these nanoparticles can be easily separated from the reaction mixture, using an external magnet 10 – 13 . Moreover, magnetic nanoparticles have low toxicity 14 , 15 and can be recovered and reused up to several runs.…”

Synthesis and Reactivity of Copper and Copper Containing Magnetically Separable Catalysts

“…Simultaneously, Varma and co-workers [76] have reported a good example of the catalytic synthesis of 1,2,3triazoles through three-component reaction of alkyl bromides, sodium azide, and alkynes, by nano ferrite-glutathione-coppercatalystunder microwave irradiation conditions within just 10-20 min.Besides this, CuFe 2 O 4 nanoparticles, copper loaded L-DOPA functionalized magnetite nanoparticlesand copper(II)coated magneticcore-shell nanoparticles Fe 3 O 4 @SiO 2 modified by isatoic anhydride were utilized for the synthesis of1,2,3-triazoles by Kumari,Moghaddamand Aminiet al respectively. [21,23,34] Besides this, various copper-based magnetic nanoparticles have been magnificently employed as catalysts in the synthesis of 1,2,3-triazole by other groups [109][110][111] (Karim, Nageswar, Wang group).…”

“…Besides this, various copper-based magnetic nanoparticles have been magnificently employed as catalysts in the synthesis of 1,2,3-triazole by other groups. [23,[76][77][78][79]…”

“…Heating and aging at 90 °C followed by calcination at 700 °C ChemistrySelect 1,2,3-triazole derivatives resulting from the click reaction (entry 9). [23]…”