Design, preparation and characterization of Fe₃O₄@SiO₂@ECH@thiocarbazide@Au(i)@chitosan nanoparticles as a catalyst for the synthesis of 3,4-dihydropyrano[3,2-c]chromenes

Abstract

A magnetic nanostructured iron/silica/ linker/ gold ions/ chitosan, has been synthesised to achieve an efficient and reusable catalyst characterised by X-ray diffraction, scanning, and transmission electron microscopies, energy-dispersive X-ray spectroscopy,...