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<p>2-amino-1,3,4-thiadiazole derivatives possess notable significance across therapeutic, agricultural, and industrial domains. The reaction of acid hydrazides and potassium thiocyanate in aqueous solution leads to the production of thiosemicarbazide derivatives. Hence the synthesis of 2-amino-1,3,4-thiadiazole derivatives from acid hydrazides and potassium thiocyanate in aqueous solvent and a one-step process requires efficient nanocatalysts. In this study, the synthesis of 2-amino-1,3,4-thiadiazole derivatives from acid hydrazides and potassium thiocyanate in the presence of FeCuAlO<sub>4</sub> NPs in aqueous solvent is reported. The synthesis of FeCuAlO<sub>4</sub> NPs was carried out via sol–gel auto-combustion. FeCuAlO<sub>4</sub> NPs were characterized using EDS, elemental mapping, FT-IR, XRD, FESEM, TEM, and BET. The analyses showed that FeCuAlO<sub>4</sub> NPs are single-phase, crystalline, and FCC type. The particle size distribution is about 47.76&#xa0;nm, and the surface area of the FeCuAlO<sub>4</sub> NPs is 23.52 m<sup>2</sup>g<sup>− 1</sup>. Ultimately, the FeCuAlO<sub>4</sub> NPs can be recycled across four consecutive runs with only a minor drop in performance, highlighting its robust stability. Overall, the catalyst demonstrates significant benefits, such as environmentally friendly conditions, minimal catalyst usage, operational simplicity, recyclability, and excellent product yields (80–90%).</p>

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Synthesis and characterization of FeCuAlO4 as a reusable heterogeneous acidic nanocatalyst for preparation of 2-amino-1,3,4-thiadiazole derivatives in water

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  • 发表日期：

    2025年11月29日

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  • Abbas Nikoo

摘要

2-amino-1,3,4-thiadiazole derivatives possess notable significance across therapeutic, agricultural, and industrial domains. The reaction of acid hydrazides and potassium thiocyanate in aqueous solution leads to the production of thiosemicarbazide derivatives. Hence the synthesis of 2-amino-1,3,4-thiadiazole derivatives from acid hydrazides and potassium thiocyanate in aqueous solvent and a one-step process requires efficient nanocatalysts. In this study, the synthesis of 2-amino-1,3,4-thiadiazole derivatives from acid hydrazides and potassium thiocyanate in the presence of FeCuAlO4 NPs in aqueous solvent is reported. The synthesis of FeCuAlO4 NPs was carried out via sol–gel auto-combustion. FeCuAlO4 NPs were characterized using EDS, elemental mapping, FT-IR, XRD, FESEM, TEM, and BET. The analyses showed that FeCuAlO4 NPs are single-phase, crystalline, and FCC type. The particle size distribution is about 47.76 nm, and the surface area of the FeCuAlO4 NPs is 23.52 m2g− 1. Ultimately, the FeCuAlO4 NPs can be recycled across four consecutive runs with only a minor drop in performance, highlighting its robust stability. Overall, the catalyst demonstrates significant benefits, such as environmentally friendly conditions, minimal catalyst usage, operational simplicity, recyclability, and excellent product yields (80–90%).