Trihydrazinotriazine-grafting Fe₃O₄/SiO₂ core-shell nanoparticles with expanded porous structure for organic reactions

Abstract

This study focuses on the synthesis and characterization of a novel magnetic nanocomposite 2,4,6-trihydrazino-1,3,5-triazine (THDT)-functionalized 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 tetrahydrobenzo[b]pyran derivatives as well as reduced the reaction times and increased yields of the products.

Graphical abstract

Keywords

trihydrazino-triazine / porous / magnetic nanocatalyst / green chemistry / tetrahydrobenzo[b]pyrans

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Acknowledgments

This work was partially supported by the research council of the Iran University of Science and Technology. We also would like to thank Maryam Niksefat, Ehsan Morshedloo and Peyman Hanifenejad for their help in graphic drawing.

RIGHTS & PERMISSIONS

2020 Higher Education Press