Synthesis of bioactive magnetic nanoparticles spiro[indoline‐3,4′‐[1,3]dithiine]@Ni (NO₃)₂ supported on Fe₃O₄@SiO₂@CPS as reusable nanocatalyst for the synthesis of functionalized 3,4‐dihydro‐2H‐pyran

Abstract

New bioactive magnetic nanoparticles of spiro[indoline‐3,4′‐[1,3]dithiine]@Ni (NO 3 ) 2 supported on Fe 3 O 4 @SiO 2 @CPS were synthesized in five steps. The structure of synthesized magnetic nanoparticles was identified by using Energy‐Dispersive X‐ray spectroscopy (EDX), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X‐Ray Diffraction (XRD), Thermal Gravimetric Analysis (TGA), Infrared spectroscopy (FT‐IR), Inductively Coupled Plasma‐Optical Emission Spectroscopy (ICP‐OES), Vibrating Sample Magnetometer (VSM) and Brunauer Emmett Teller (BET) surface analysis. Antimicrobial activity of the synthesized magnetic nanoparticles based on MIC (Minimum Inhibitory Concentration) and MBC (Minimum Bactericidal Concentration) and MFC (Minimum Fungicidal Concentration) values were also examined. Furthermore, the synthesized magnetic nanoparticles exhibited appropriate catalytic properties in the synthesis of the 3,4‐dihydro‐2H‐ pyran derivatives.