Synthesis of a magnetic polystyrene-supported Cu(II)-containing heterocyclic complex as a magnetically separable and reusable catalyst for the preparation of N-sulfonyl-N-aryl tetrazoles

Mahmoud Nasrollahzadeh; Narjes Motahharifar; Khatereh Pakzad; Zahra Khorsandi; Talat Baran; Jinghan Wang; Benjamin Kruppke; Hossein Ali Khonakdar

doi:10.1038/s41598-023-30198-7

Synthesis of a magnetic polystyrene-supported Cu(II)-containing heterocyclic complex as a magnetically separable and reusable catalyst for the preparation of N-sulfonyl-N-aryl tetrazoles

Sci Rep. 2023 Feb 24;13(1):3214. doi: 10.1038/s41598-023-30198-7.

Authors

Mahmoud Nasrollahzadeh¹, Narjes Motahharifar², Khatereh Pakzad², Zahra Khorsandi^{2

3}, Talat Baran⁴, Jinghan Wang⁵, Benjamin Kruppke⁶, Hossein Ali Khonakdar^{6

3}

Affiliations

¹ Department of Chemistry, Faculty of Science, University of Qom, PO Box 37185-359, Qom, Iran. mahmoudnasr81@gmail.com.
² Department of Chemistry, Faculty of Science, University of Qom, PO Box 37185-359, Qom, Iran.
³ Department of Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran.
⁴ Department of Chemistry, Faculty of Science and Letters, Aksaray University, 68100, Aksaray, Turkey.
⁵ Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea.
⁶ Max Bergmann Center of Biomaterials, Institute of Materials Science, Technische Universität Dresden, 01069, Dresden, Germany.

Abstract

In this work, a cost-effective, environmentally friendly, and convenient method for synthesizing a novel heterogeneous catalyst via modification of polystyrene using tetrazole-copper magnetic complex [Ps@Tet-Cu(II)@Fe₃O₄] has been successfully developed. The synthesized complex was analyzed using TEM (transmission electron microscopy), HRTEM (high resolution-transmission electron microscopy), STEM (scanning transmission electron microscopy), FFT (Fast Fourier transform), XRD (X-ray diffraction), FT-IR (Fourier transform-infrared spectroscopy), TG/DTG (Thermogravimetry and differential thermogravimetry), ICP-OES (Inductively coupled plasma-optical emission spectrometry), Vibrating sample magnetometer (VSM), EDS (energy dispersive X-ray spectroscopy), and elemental mapping. N-Sulfonyl-N-aryl tetrazoles were synthesized in high yields from N-sulfonyl-N-aryl cyanamides and sodium azide using Ps@Tet-Cu(II)@Fe₃O₄ nanocatalyst. The Ps@Tet-Cu(II)@Fe₃O₄ complex can be recycled and reused easily multiple times using an external magnet without significant loss of catalytic activity.