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 (NO3)2 supported on Fe3O4@SiO2@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.

Recent Progress in the Multicomponent Synthesis of Pyran Derivatives by Sustainable Catalysts under Green Conditions

“…Manesh and co-workers [ 63 ] have developed magnetic nanoparticles of Fe 3 O 4 /SiO 2 /CPS encapsulated with spiro[indoline-3,4′-[ 1 , 3 ][dithiine]-Ni-composite, which can be used as green heterogeneous catalyst for the preparation of dihydropyran ( 32 ) scaffolds. The magnetic nanoparticles were characterised using FTIR, XRD, EDX, VSM, BET, SEM and TEM.…”

Improved electrical conductivity of Co(ii) and Cu(ii) ladder polymers in the fabrication of photoresponsive Schottky devices

“…The discussed inorganic–organic hybrid materials are extremely applicable in the territory of gas sorption, molecular storage and separation, ion exchange, electrochemical catalysis, energy technology, drug delivery, temperature-dependent magnetism, sensing and detection of noxious ions and emerging analytes, proton conductance, electrical conductivity, electronic device fabrication, etc. 22–34…”

Design and synthesis of γ‐Fe2O3@Ag‐S‐CH2‐COOH nanocatalyst for one‐pot synthesis of 2,3‐dihydroquinazolin‐4(1H)‐ones and their anti‐skin cancer activity

“…One important symbol of green chemistry is utilizing cost‐effective synthetic precursors, catalysts, and solvents to push toward more sustainable chemical transformations. The heterogeneous catalysts are being used more frequently in organic synthesis because of their affordability and reusability 1 . Iron corrosion raises severe problems like economic growth, environmental pollution, and safety.…”

“…) White solid, M.P-202 C[41][42][43] ; IR (KBr) cm À1 : 3361, 3193, 2923, 2372, 1645, 1613, 1502;1 H NMR (400 MHz, DMSO-d 6 ) δ (ppm): 8.21 (br. s., 1H), 7.63 (d, J = 7.8 Hz, 1H), 7.51-7.60 (m, 1H), 7.42-7.49 (m, 1H), 7.30-7.41 (m, 2H), 7.26 (t, J = 7.7 Hz, 1H), 6.99 (s, 1H), 6.67-6.78 (m, 2H), 6.11 (s, 1H); 13 C NMR (101 MHz, DMSO-d 6 ): δ (ppm): 164.6, 147.9, 138.2, 134.4, 132.2, 130.9, 130.2, 128.8, 127.9, 118.2, 115.1, 114.8, 64.0.…”