| Synthesis a novel green Nano magnetite functionalized with sulfonamide, characterization and efficient in click reaction |
| Paper ID : 1218-UFGNSM-FULL |
| Authors: |
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Somayeh Ostovar * Dezfoul, ST Horeat, ST Golestan,Numbore 2, Khozestan,Iran |
| Abstract: |
| The synthesized magnetic γ-Fe2O3@SiO2-STZ nanoparticles were characterized by various techniques such as X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), thermo gravimetric analysis (TGA), and vibrating sample magnetometer (VSM) which revealed the superparamagnetic nature of the particles. Significant efforts have been paid recently in the modification of homogeneous catalysts, used in highly selective organic transformations to address various economic and environmental issues. The attachment of the functional groups on semiconducting metal oxide surfaces such as magnetic iron oxide nanoparticles (Fe3O4 or Fe2O3 NPs) has been proposed since these nanomaterials ensure the preservation of enzyme biological activity, molecular complexes and metal nanoparticles. In herent properties of functionalized –SO2NHR modified core-shell and magnetic yield materials with different hydrophilicities include good reusabilities, and high activity. The silica-encapsulated was functionalized with biomolecule Sulfonamide. The γ-Fe2O3@SiO2-STZ was found to be a highly active and efficient catalyst at room temperature for three-component couplings between aldehydes, alkynes and amines. Finally, we reported characterization and application of nanocatalyst in the reaction with excellent yields (65%-87%), in short time, and under mild conditions, also these catalysts proved to be easily recoverable through the use of an external magnet, without significant loss of activity and recycled at four run time. |
| Keywords: |
| Nanocatalyst, Superparamagnetic, Functionalized, Three-Component Couplings |
| Status : Paper Accepted (Oral Presentation) |
