Trihydrazinotrazine-grafting Fe_(3)O_(4)/SiO_(2) core-shell nanoparticles with expanded porous structure for organic reactions

摘要

This study focuses on the synthesis and characterization of a novel magnetic nanocomposite 2,4,6-trihydrazino-1,3,5-triazine(THDT)-fimctionalized with silica-coated iron oxide magnetic nanoparticles(MNPs).This nanocomposite has porous morphology decorated with the spherical MNPs.Through co-precipitation of iron salts,MNPs were obtained.The prepared THDT was placed on the chlorine surface-modified MNPs.The present environment-friendly nanocatalyst intensely accelerated the synthesis of highly functionalized tetra-hydrobenzo[b]pyran derivatives as well as reduced the reaction times and increased yields of the products.