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صفحه اصلی
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بیست و نهمین کنفرانس شیمی آلی ایران
Palladium nanoparticles stabilized on the amino acids-functionalized Fe3O4 as the magnetically recoverable nanocatalysts for Suzuki reactions
نویسندگان :
مهتاب نعیم ( دانشگاه ایلام ) , محسن صیادی ( دانشگاه بوعلی سینا ) , علی نقی پور ( دانشگاه ایلام )
کلید واژه ها :
Magnetic nanocatalyst،C -C coupling reaction،Recyclable catalysts
چکیده مقاله :
Palladium is one of the most crucial metals in catalysis and it has been commonly applied as one of the most powerful tools for the formation of the carbon–carbon bond in organic synthesis [1]. Therefore, Palladium- catalyzed C-C cross coupling reactions, especially the Suzuki and Heck reactions (coupling of aryl halides with arylboronic acids and alkenes, respectively) have played a crucial role in the chemical industries and researches [2]. In recent years, among the various magnetic nanoparticles, Fe3O4 MNPs have been extensively emerged as efficient inorganic supports for stabilizing of homogeneous catalysts because of their unique properties such as easy preparation and functionalization, having a high surface area, good stability, as well as low toxicity and cost, and easy availability [3]. Taking advantage of multiple-functional groups in molecule, glutathione was usually used as reducing agent to synthesize metal nanoparticle with ultra-small diameter [4]. In this study, two amino acids, aspartic acid and glutathione, were used. Based on the aforementioned remarks, herein, we have illustrated the synthesis of efficient and reusable heterogeneous catalysts based on Pd nanoparticles supported on magnetic Fe3O4 nanoparticles which are functionalized by glutathione and aspartic acid. These new nanocomposites have been investigated as the magnetically separable and recyclable catalysts for Suzuki reactions.
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