| A Novel Magnetically Recyclable 3D Porous Solid Acid Catalyst (3D-MnFe₂O₄–C@SO₃H) for Green Synthesis of Xanthene and Pyran Derivatives |
| کد مقاله : 1268-ICOC |
| نویسندگان |
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سارا محمدیان *1، حسین حمادی2، ایرج کاظمی نژاد3 1دانشگاه شهید چمران اهواز-دانشکده علوم-گروه شیمی-فارغ التحصیل 2دانشگاه شهید چمران اهواز-دانشکده علوم- گروه شیمی-دانشیار 3دانشگاه شهید چمران اهواز- دانشکده علوم-گروه فیزیک- استاد |
| چکیده مقاله |
| In this study, to achieve sustainable and environmentally benign catalytic systems, a novel engineered porous solid named 3DMnFe₂O₄–C@SO₃H was designed and synthesized. The 3D MnFe₂O₄–C@SO₃H was successfully synthesized via in-situ gas foaming and subsequent sulfonation under green conditions[1]. Its structure, morphology, and properties were confirmed Characterizations showed the formation of a 3D porous carbon framework with a uniformly distributed sulfonic acid layer and embedded MnFe₂O₄ magnetic nanoparticles. 3DMnFe₂O₄–C@SO₃H as catalyst exhibited excellent activity and selectivity in the solvent-free synthesis of 1,8-dioxo-octahydroxanthenes and tetrahydro benzo[b]pyrans. This high performance is attributed to the synergistic effect between the accessible Brønsted acid sites (–SO₃H) and the 3D porous architecture that enhances substrate diffusion. Furthermore, the catalyst was magnetically recoverable and could be reused for at least six successive cycles without noticeable loss in activity or structure. This work presents an efficient, magnetically recyclable 3D solid acid catalyst. Its superior performance, coupled with easy recovery and excellent reusability, makes it a highly promising candidate for green and sustainable organic synthesis and other environmentally benign catalytic transformations. |
| کلیدواژه ها |
| 3D porous catalyst, Magnetic solid acid, Solvent-free synthesis, green catalysis, magnetically recoverable |
| وضعیت: پذیرفته شده |