Title of article :
[Mn(TPPS)] immobilized on ionic liquid-modified silica as a heterogeneous and reusable catalyst for epoxidation of alkenes with NaIO4 under ultrasonic irradiation
Author/Authors :
Hajian, Robabeh Department of Chemistry - Yazd University, Yazd , Tangestaninejad, Shahram Catalysis Division - Department of Chemistry - University of Isfahan, Esfahān , Moghadam, Majid Catalysis Division - Department of Chemistry - University of Isfahan, Esfahān , Mirkhani, Valiollah Catalysis Division - Department of Chemistry - University of Isfahan, Esfahān , Mohammadpoor-Baltork, Iraj Catalysis Division - Department of Chemistry - University of Isfahan, Esfahān
Abstract :
Effective epoxidation of alkenes using sodium periodate was accomplished with Manganese (III) tetrakis(p-sulfonatophenyl)porphyrin, [C44H26N4O12S4Na4], supported on ionic liquids-modified silica, Im-SiO2, under ultrasonic irradiation conditions is reported. This heterogeneous catalyst, [Mn(TPPS)@SiO2-Im] was characterized by elemental analysis, scanning electron microscopy (SEM), FT-IR and UV–Vis spectroscopic methods. The synthesized hybrid catalyst was applied for efficient epoxidation of various alkenes with sodium periodate in acetonitrile under ultrasonic irradiation conditions. This solid catalyst can be easily recovered by simple filtration and reused several time without apparent loss of its catalytic activity.
Keywords :
Immobilized ionic liquid , Sodium periodate , Epoxidation , [Mn(TPPS)] , Heterogeneous catalyst , Ultrasonic irradiation
Journal title :
Astroparticle Physics
