A new samarium complex of 1,3-bis(pyridin-3-ylmethyl)thiourea on boehmite nanoparticles as a practical and recyclable nanocatalyst for the selective synthesis of tetrazoles

Parisa Moradi; Tavan Kikhavani; Yunes Abbasi Tyula

doi:10.1038/s41598-023-33109-y

A new samarium complex of 1,3-bis(pyridin-3-ylmethyl)thiourea on boehmite nanoparticles as a practical and recyclable nanocatalyst for the selective synthesis of tetrazoles

Sci Rep. 2023 Apr 11;13(1):5902. doi: 10.1038/s41598-023-33109-y.

Authors

Parisa Moradi¹, Tavan Kikhavani², Yunes Abbasi Tyula³

Affiliations

¹ Department of Chemistry, Faculty of Science, Ilam University, P.O. Box 69315516, Ilam, Iran. p.moradi@ilam.ac.ir.
² Department of Chemical Engineering, Faculty of Engineering, Ilam University, Ilam, Iran. t.kikhavandi@ilam.ac.ir.
³ Department of Chemistry, Faculty of Science, Ilam University, P.O. Box 69315516, Ilam, Iran.

Abstract

Boehmite is a natural and environmentally friendly compound. Herein boehmite nanoparticles were primarily synthesized and, then, their surface were modified via 3-choloropropyltrimtoxysilane (CPTMS). Afterwards, a new samarium complex was stabilized on the surface of the modified boehmite nanoparticles (Sm-bis(PYT)@boehmite). The obtained nanoparticles were characterized using thermogravimetric analysis (TGA), energy dispersive X-ray spectroscopy (EDS), Brunauer-Emmett-Teller (BET), wavelength dispersive X-ray spectroscopy (WDX), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), Inductively coupled plasma mass spectrometry (ICP-MS), dynamic light scattering (DLS), and X-ray diffraction (XRD) pattern. Sm-bis(PYT)@boehmite was used as an environmentally friendly, efficient, and organic-inorganic hybrid nanocatalyst in the homoselective synthesis of tetrazoles in polyethylene glycol 400 (PEG-400) as a green solvent. Notably, Sm-bis(PYT)@boehmite is stable and has a heterogeneous nature. Thus, it can be reused for several runs without any re-activation.