OICC Press Iranian Journal of Catalysis 2345-4865 10 4 2024 02 03 Magnesium-iron bimetal oxides as an effective magnetized solid-base catalyst for the synthesis of substituted 2-aminthiophenes EN Rayhaneh Ashkevar-Vakili Department of Chemistry, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas 7915893144, Iran Farid Moeinpour Department of Chemistry, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas 7915893144, Iran Journal Article 2024 02 03 < p>Mg-Fe bi-metal oxide was prepared and utilized as a magnetized renewable solid base catalyst for formation of 2-aminothiophenes by means of Gewald’s reaction. The prepared heterogeneous basic solid catalyst can be separated by a magnet and reused without considerable wastage in this activity. The structure of the aforementioned magnetized basic nano-catalyst was studied by XRD (X-ray diffraction), SEM (scanning electron microscopy), TEM (transmission electron microscopy), EDS (energy dispersive x-ray spectroscopy) and VSM (vibrating sample magnetometry) techniques. The present methodology offers several advantages such as high yields of products, shorter reaction times, environmentally friendly conditions, low catalyst dosage, high endurance and facile work-up.