NiFe
2O
4@Sio
2
nPr@Glucose Amine Nanoparticles as a Green and Magnetically Separable Catalyst for the Grinding Synthesis of Aryl Naphtho[1,3]Oxazine-2-Thiones

Nikpassand, Mohammad; Azmoudeh, Shokoufeh

doi:10.2139/ssrn.3589135

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NiFe ₂O ₄@Sio ₂ ⁿPr@Glucose Amine Nanoparticles as a Green and Magnetically Separable Catalyst for the Grinding Synthesis of Aryl Naphtho[1,3]Oxazine-2-Thiones

13 Pages Posted: 30 Apr 2020

See all articles by Mohammad Nikpassand

Glucose amine‐functionalized silica‐coated NiFe₂O₄ nanoparticles (NiFe₂O₄@Sio₂ⁿPr@glucose amine) were synthesized and characterized by transmission electron microscope (TEM), Field emission scanning electron microscope (FE-SEM), fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM), X-ray powder diffraction (XRD) and X-ray spectroscopy (EDX). NiFe2O4@SiO2nPr@glucose amine supply an eco-friendly procedure for the synthesis of 1,3-oxazine-2-thiones through three-component grinding reaction of various aldehydes, thiourea, and α-naphthol or β-naphthol in accordance with green chemistry rules. These compounds were obtained in high yields and short reaction times. The catalyst could be easily recovered and reused for six cycles with almost consistent activity. The structures of the synthesized Aryl naphtho[1,3]oxazine-2-thione compounds were confirmed by 1H NMR, 13C NMR and FTIR spectral data and elemental analyses.

Keywords: NiFe2O4@SiO2nPr@glucose amine NanoparticleAryl naphtho[1, 3]oxazine-2-thione ThioureaThree-component reaction

Suggested Citation: Suggested Citation

Nikpassand, Mohammad and Azmoudeh, Shokoufeh, NiFe ₂O ₄@Sio ₂ ⁿPr@Glucose Amine Nanoparticles as a Green and Magnetically Separable Catalyst for the Grinding Synthesis of Aryl Naphtho[1,3]Oxazine-2-Thiones. Available at SSRN: https://ssrn.com/abstract=3589135 or http://dx.doi.org/10.2139/ssrn.3589135