Iranian Research Organization for Science and Technology Journal of Particle Science and Technology 2423-4087 4 2 2018 10 01 A novel application of Co3O4@SiO2 nanocomposite as an efficient and robust catalyst for the preparation of some imidazolone derivatives 111 117 788 10.22104/jpst.2019.3091.1132 EN Taleb Asadi Department of Chemistry, Qom Branch, Islamic Azad University, Qom, PO Box 37491-13191, Iran Mohammad Ali Ghasemzadeh Department of Chemistry, Qom Branch, Islamic Azad University, Qom, PO Box 37491-13191, Iran 0000-0002-8309-6727 Manoochehr Fadaeian Department of Chemistry, Qom Branch, Islamic Azad University, Qom, PO Box 37491-13191, Iran Journal Article 2018 08 12 In the present work, a simple, green and efficient procedure for the synthesis of imidazolone derivatives is described via the reaction of oxazolones and different arylamines in the presence of Co₃O₄@SiO₂ nanocomposite as a catalyst under solvent-free conditions at 90°C. The catalyst has been fully analyzed by FT-IR, FE-SEM, EDX, and XRD analysis. The present method offers several advantages such as high yields, short reaction times, mild reaction conditions and recoverability of the catalyst. In addition, the obtained heterocyclic compounds were analyzed by FT-IR and ¹HNMR spectroscopy analysis. https://jpst.irost.ir/article_788_c15da1f2b5e5ed6e6837a3802f0d1593.pdf