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صفحه اصلی
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بیست و نهمین کنفرانس شیمی آلی ایران
Highly stable magnetically Cu-nanocatalyst as an Efficient Catalyst for C(sp2)−C(sp) and C(sp2)–C(sp2) cross coupling reactions
نویسندگان :
MASOMEH BALALI ( دانشگاه صنعتی همدان ) , Hassan Keypour ( دانشگاه بوعلی سینا همدان ) , Mojtaba Bagherzadeh ( دانشگاه صنعتی شریف )
کلید واژه ها :
Magnetic nanoparticles،Cross-coupling reactions،Nanocatalysts
چکیده مقاله :
Cu-catalyzed has been explored as an efficient and recyclable catalyst to effect on Sonogashira and Suzuki cross-coupling reactions. After the modification of 2-(((piperazin-1-ylmethyl)imino)methyl)phenol on the surface of amorphous silica coated iron oxide (Fe3O4@SiO2@Cl) magnetic core–shell nanocomposite, Copper(II) chloride was employed to synthesize the Fe3O4@SiO2@SH@-Cu catalyst, affording a copper loading of 1.52 mmol g−1. High yield, low reaction times, non-toxicity and recyclability of the catalyst are the main merits of this protocol. The catalyst has been characterized by FT-IR, XRD, SEM, TEM, XPS, EDX, VSM and ICP-AES. The Fe3O4@SiO2@SH@Cu nanocatalyst shows good activity towards Sonogashira and Suzuki cross‐coupling reactions in an environmentally friendly solvent (water–DMF) under mild conditions. The catalyst shows not only high catalytic activity, but also offers many practical advantages such recyclability and air stability.
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