Cu(II)/L-His@Fe3O4 supported on magnetic nanoparticles: a highly efficient and recoverable catalysts for organic transformations
- سال انتشار: 1398
- محل انتشار: دومین کنفرانس کاتالیست انجمن شیمی ایران
- کد COI اختصاصی: ICCO02_007
- زبان مقاله: انگلیسی
- تعداد مشاهده: 554
نویسندگان
PhD in organic chemistry, Iran, Ilam University
Department of Chemistry, Faculty of Science, Ilam University, P.O. Box ۶۹۳۱۵۵۱۶, Ilam
Department of Chemistry, Faculty of Science, Ilam University, P.O. Box ۶۹۳۱۵۵۱۶, Ilam
چکیده
Mounting interest is recently expressed for surface functionalization of nanocatalysts in which the nanoscale architecture of active centre plays a dominant role in determining their efficiency and selectivity [1-3]. In this regard, the use of supported magnetic nanoparticles (MNPs) materials has been efficiently employed as heterogeneous catalysts. Here we prepared a nanocatalyst by immobilization of the Cu(II)-L-Histidine complex on magnetic Fe3O4 nanoparticles. Copper (II) bound to L-histidine is inequilibrium with human serum albumin and may undergo common exchange which modulates the bioavailability of copper to thecell. Cu(II)/L-His@Fe3O4 as a novel, efficient and green nanocatalyst was applied successfully in the synthesis of heterocycliccompounds. The resulted catalyst was used in the synthesis of 2,3-dihydroquinazolin-4(1H)-ones, polyhydroquinolines and 2-amino-6-(arylthio) pyridine-3,5-dicarbonitrile as biologically interesting compounds (scheme 1). The present research is focused oninvestigation of recycling, reusability and stability of the catalyst in the phase reaction. The Cu(II)/L-His@Fe3O4 was used at leastsix times with comparable activities to that of fresh catalyst. The results of the TGA/DTG, EDS, XRD, VSM, FT-IR and SEMcharacterization confirmed the structure and composition of the catalyst were stable.کلیدواژه ها
Magnetic nanoparticle, L-Histidine, Polyhydroquinolines, NanoCatalyst, Copper(II)مقالات مرتبط جدید
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