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- Title
Fabrication of 5-aryl-1H-tetrazoles derivatives by solid-state synthesized MgFe<sub>2</sub>O<sub>4</sub> and MgFe<sub>2</sub>Zn<sub>x</sub>O<sub>4+δ</sub> heterogeneous nanocatalysts.
- Authors
Kafi-Ahmadi, Leila; Khademinia, Shahin; Poursattar Marjani, Ahmad; Gozali Balkanloo, Peyman
- Abstract
MgFe2O4 and MgFe2ZnxO4+δ composite samples were fabricated using MgCl2.6H2O and FeCl3.6H2O (and Zn(NO3)2.6H2O for the doped sample) in one-step, solid-state reactions at 800 °C for 12 h. The obtained materials were characterized by the powder X-ray diffraction technique. Rietveld analysis data showed that the obtained MgFe2O4 was crystallized in the cubic crystal system with the space group Fd-3m. The morphology of the synthesized materials was studied by a field emission scanning electron microscope. The aim of the present work was the preparation of 5-aryl-1H-tetrazoles from benzonitrile raw material derivatives and sodium azide in the presence of MgFe2O4 and MgFe2ZnxO4+δ heterogeneous and recyclable catalysts under conventional heating conditions. The main superiorities of the method were high output and simplicity. Time, temperature, solvent type, and quantity of the catalyst were considered crucial factors for optimization of the reaction conditions. According to the results, the best conditions for the catalytic reaction were 3 h, 80 °C, 5 mol% catalyst, and dimethyl sulfoxide solvent. At the optimum conditions, a high catalytic yield (97%) was obtained.
- Subjects
CUBIC crystal system; FIELD emission electron microscopes; HETEROGENEOUS catalysts; CATALYSTS recycling; RIETVELD refinement; DIMETHYL sulfoxide
- Publication
Research on Chemical Intermediates, 2022, Vol 48, Issue 7, p2973
- ISSN
0922-6168
- Publication type
Article
- DOI
10.1007/s11164-022-04741-6