Starch-derived magnetic nanoparticles (Fe3O4@C-SO3H): synthesis, characterization and its application on the preparation of dihydropyrano[c]chromenes, 2‑ Amino-3-cyano‑ 4H‑ pyrans and 2-amino-4H-chromenes derivatives

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Khorsi Damghani Fatemeh; Pourmousavi Seied Ali; KIYANI HAMZEH

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Journal: JOURNAL OF APPLIED CHEMISTRY Year:2020 | Volume:14 | Issue:53 Page(s): 109-124

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Title

Starch-derived magnetic nanoparticles (Fe3O4@C-SO3H): synthesis, characterization and its application on the preparation of dihydropyrano[c]chromenes, 2‑ Amino-3-cyano‑ 4H‑ pyrans and 2-amino-4H-chromenes derivatives

Author(s)

Khorsi Damghani Fatemeh | Pourmousavi Seied Ali | KIYANI HAMZEH | Issue Writer Certificate

Keywords

Magnetic nanoparticlesQ1

Fe3O4@C-SO3HQ1

dihydropyrano[c]chromenesQ1

StarchQ1

Abstract

In this study, a novel biomass and Starch-derived carbonaceous solid acid catalyst (Fe3O4@C-SO3H) that has superparamagnetism with high acid density was successfully prepared for the first time by incomplete hydrothermal carbonization of Starch followed by Fe3O4 grafting and – SO3H groups functionalization. The characterization of physicochemical properties of Fe3O4@C-SO3H NPs was achieved by X-ray diffraction (XRD), Fourier-transform infrared spectra (FT-IR) and Field Emission scanning electron microscope (FESEM). The resulted catalyst contained-SO3H,-COOH, and phenolic-OH groups and exhibited good catalytic activity for the one-pot synthesis of dihydropyrano[c]chromenes, 2‑ Amino-3-cyano‑ 4H‑ pyrans and 2-amino-4H-chromenes derivatives (chromenes and pyrans) via multicomponent reactions. High catalytic activity and easy magnetical separation from the reaction mixture are two significant factors for evaluating the performance of Fe3O4@C-SO3H nanoparticles in the organic transformations.

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