Immobilized Cu(II) Schiff-base complex supported on Fe3O4 magnetic nanoparticles: A highly efficient and reusable new catalyst for the synthesis of pyranopyridine derivatives
- سال انتشار: 1397
- محل انتشار: بیستمین کنگره شیمی ایران
- کد COI اختصاصی: IRANCC20_146
- زبان مقاله: انگلیسی
- تعداد مشاهده: 249
نویسندگان
Department of Chemistry, Faculty of Science, Bu‐Ali Sina University, Hamedan, Iran
Department of Chemistry, Faculty of Science, Bu‐Ali Sina University, Hamedan, Iran
Department of Chemistry, Faculty of Science, Bu‐Ali Sina University, Hamedan, Iran
چکیده
A new heterogeneous cupper (II) Schiff-base complex immobilized on silica-coated nanomagnetic Fe3O4 was synthesized from acetylacetonate (acac) and 2- aminothiophenol (ATP). The newly composed nanocatalyst Fe3O4@SiO2-acac-2ATPCu( II) was structurally characterized by several analytical techniques such as Fouriertransform infrared spectroscopy (FT-IR), vibrating sample magnetometer (VSM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The catalytic activity of Fe3O4@SiO2-acac-2ATP-Cu(II) nanoparticles was investigated for the synthesis of pyrano[2,3-b]pyridine derivatives from one-pot three-component reaction of aldehydes, malononitrile, and 3-cyano-6-hydroxy-4-methyl-pyridin-2(1H)- one. A high catalytic performance was exhibited by this nanocatalyst under solventfree conditions and excellent yields of the products were achieved from this reaction in reasonably short reaction times. The nanoparticles can be easily separated from the reaction mixture simply by magnetic decantation and reused for several fresh consecutive runs without significant loss of catalytic activityکلیدواژه ها
مقالات مرتبط جدید
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.