Manganese salophen complex supported on magnetic nanoparticles as an efficient, selective and recyclable catalyst for epoxidation of alkenes
الموضوعات : International Journal of Heterocyclic Chemistry
Mozhgan Afshari
1
(1Department of Chemistry, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran)
Maryam Gorjizadeh
2
(Department of Chemistry, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran)
Simin Nazari
3
(2Department of Chemistry, Sousangerd Branch, Islamic Azad University, Sousangerd, Iran)
الکلمات المفتاحية: Epoxidation, Surface functionalization, Cobalt ferrite, Magnetic nanoparticles, Mn (III) salophen complex,
ملخص المقالة :
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.
