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صفحه اصلی
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بیست و نهمین کنفرانس شیمی آلی ایران
Selective oxidation of benzylic alcohols using Mo(VI) complex supported on magnetic nanoparticles as a new recoverable heterogeneous catalyst
نویسندگان :
هادی کارگر ( دانشگاه اردکان ) , Ali Bovand ( دانشگاه اردکان ) , مهدی فلاح ( دانشگاه پیام نور )
کلید واژه ها :
بازشیف،نانوذرات مغناطیسی،واکنش اکسایش،کاتالیزور ناهمگن
چکیده مقاله :
In the present study, magnetic nanoparticles were functionalized with a dioxomolybdenum(VI) complex containing the tridentate ONO Schiff base ligand obtained from the condensation reaction of 3-ethoxysalicylaldehyde with 4-aminobenzohydrazide. The supported Mo(VI) complex was then characterized by various physicochemical techniques such as Fourier transform infrared (FT-IR), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), vibrating-sample magnetometer (VSM) and X-ray diffraction (XRD) analyses. Moreover, selective oxidation of the various benzylic alcohols was carried out in the presence of the resultant heterogeneous nanocatalyst by using H2O2 as a safe oxidizing agent in ethanol as a green solvent under reflux conditions. The nanocatalyst can be recovered magnetically and can be reused several times without a remarkable loss of activity.
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