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Tribromide Immobilized on Amino-Functionalized Magnetic Nanoparticles: A Active Magnetically Recoverable Catalyst for the Synthesis of Heterocycles

Saade Abdalkareem JasimMedical Laboratory Techniques Department, Al-Maarif University College, Al-Anbar-Ramadi, IraqZiyadulla Eshmamatovich ZhumanovDepartment of Pathological Anatomy, with a Section-Biopsy Course, Samarkand State Medical Institute, Samarkand, UzbekistanMaria Jade Catalan OpulenciaCollege of Business Administration, Ajman University, Ajman, United Arab EmiratesMustafa M. KadhimDepartment of Pharmacy, Osol Aldeen University College, Baghdad, IraqThulfeqar Ahmed HamzaMedical Laboratory Techniques Department, Al-Mustaqbal University College, Babylon, IraqShaymaa Abed HusseinHimanshu SharmaDepartment of Computer Engineering and Applications, GLA University, Mathura, IndiaAli Thaeer HammidComputer Engineering Techniques Department, Faculty of Information Technology, Imam Ja’afar Al-Sadiq University, Baghdad, Iraq
ABI

Annotatsiya

A novel tribromide nanocatalyst was successfully fabricated via the heterogenization of tribromide ion on the surface of silica-coated magnetic nanoparticles modified with N2,N4,N6-tris(aminomethyl)-1,3,5-triazine-2,4,6-triamin [Fe3O4@SiO2-tris(triazine-triamine)-Br3] and was well characterized by Fourier-transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Energy Dispersive X-Ray Analysis (EDX), vibrating-sample magnetometer (VSM), X-ray diffraction analysis (XRD) and Thermogravimetric analysis (TGA) spectroscopic techniques. TEM and SEM analysis confirmed that the typical silica shell thickness was assessed to be around 20 nm. The as-fabricated Fe3O4@SiO2-tris(triazine-triamine)-Br3 nanomaterial was shown high catalytic activity in the multicomponent synthesis of highly substituted piperidines and polyhydroquinolines. Recycling experiments revealed that the Fe3O4@SiO2-tris(triazine-triamine)-Br3 could be easily recovered by a simple magnetic separation and recycled at least 7 times without deterioration in catalytic activity.

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