Manganese salophen complex supported on magnetic nanoparticles as an efficient, selective and recyclable catalyst for epoxidation of alkenes

Journal of Chemical Reactivity and Synthesis

مقاله 4، دوره 2، شماره 2، مرداد 2012، صفحه 22-30   

نوع مقاله: Research Article

نویسندگان

Mozhgan Afshari^{* 1}؛ Maryam Gorjizadeh²؛ Simin Nazari³

¹1Department of Chemistry, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran

²Department of Chemistry, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran

³2Department of Chemistry, Sousangerd Branch, Islamic Azad University, Sousangerd, Iran

چکیده

A magnetically recoverable catalyst consisting of Mn (III) salophen complex was prepared. The synthesized catalyst was characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM), inductively coupled plasma atomic emission spectroscopy (ICP-AES) and Fourier transform infrared (FT-IR). The immobilized catalyst was shown to be an efficient heterogeneous catalyst for the epoxidation of various alkenes using hydrogen peroxide (H₂O₂) as oxidant. The catalyst could be easily and efficiently isolated from the final product solution by magnetic decantation and be reused for 5 consecutive reactions without showing any significant activity degradation.

کلیدواژه‌ها

Cobalt ferrite؛ Epoxidation؛ Magnetic nanoparticles؛ Surface functionalization؛ Mn (III) salophen complex