| The alkene epoxides find important application in Pharmaceuticals, plastics, perfumes, and pesticide. In this field, the use of Mn(salen) catalysts has received great attention in the last few years, given that they have shown to be useful in the epoxidation of non-functionalized olefins. Despite its interest, this method of epoxidation suffers from some drawbacks from a practical point of view. The high cost of the complex and the lack of recycling methods make it difficult for application of this system on a large scale. The encapsulation of salen complex using ship-in-bottle method and immobilization by ion exchange reaction are given more attention. But these methods are needed to react a functionlized ligand with reactive groups of organic and inorganic compounds. The procedure of synthesizing catalysts is complicated and essential to be carried out in organic solvent. It is important academic and practical values to simplify the procedure of heterogenized catalysts' preparation.A novel method of preparation heterogeneous Mn(salen) catalysts by solid-state interaction between Mn(salen) complex and different supports under microwave irradiation is developed in this paper. The catalysts which prepared by different methods have been characterized by XRD, FTIR , DR UV-Vis, and TG-DSC techniques. The effects of catalysts prepared by different methods and the different supports on catalytic performances are investigated by the use of styrene epoxidation as probe reaction.M (Salen) complex are synthesized by different metal ions and salen ligands. The complexes are characterized by FT-IR spectra. The catalytic performance is investigated by testing epoxidation of styrenc. It is found that the complex of Mn(Salen) which is synthesized by the ligand ofethylenediamine with salicylaldehyde show the best catalytic activity and selectivity for epoxide among them when use H2O2 as oxidant at the temperature of 273 K for 8 h.Mn(salen)/MCM-41 and Mn(salen)/HMS are prepared by solid-state-interaction under Microwave Irradiation. XRD spectra indicate that MCM-41 and HMS which supported Mn(salen) complex have typical mesoporous character. FT-IR spectra indicate that supported catalysts have characteristic IR bands of Mn(Salen) complex. The effect of catalyst preparation methods on the catalytic activity and selectivity of styrene epoxidation is also investigated. It is found that the catalyst of Mn(Salen)/MCM-41-IP or Mn(Salen)/HMS-IP showed high conversion of styrene and selectivity for phenyloxirane. But theses supported catalysts can not be reused.Mn(Salen)/Al-MCM-41 and Mn(Salen)/Al-HMS catalysts are prepared by microwave irradiation (MWI) through host-guest interaction between Mn(Salen) complex and mesoporous Al-MCM-41 and Al-HMS. These catalysts are compared with the catalyst which prepared by conventional methods. FT-IR, DR UV-Vis, and TG-DSC results indicate that Mn(Salen) complex can be successfully immobilized on mesoporous materies which prepared by MWI method and conventional method. The strong host-guest interaction between Mn(Salen) complex and supports is found after Mn(Salen) complex immobilized on the supports. After impregnating the mixture of Salen ligand, manganese(II) acetate, lithium chloride, and the calcined Al-MCM-41 or Al-HMS with the solvent of dichloromethane, the mixture is irradiated by microwave. The catalysts prepared by this method are denoted as Mn(Salen)/Al-MCM-41-IP and Mn (Salen) /Al-HMS-IP. The effect of catalyst preparation methods on the catalytic activity and selectivity of styrene epoxidation is also investigated. It isfound that the catalyst of Mn(Salen)/Al-MCM-41-IP or Mn (Salen)/Al-HMS-IP show high conversion of styrene and the best selectivity for phenyloxirane.The method of "ship-in-bottle" are used to encapsulate Mn(Salen) complex into NaY zeolite by microwave irradiation through solid-state interaction and conventional method. FT-IR and DR UV-Vis spectra indicate that Mn(Salen) complex can be successfully encapsulated into NaY cages which prepared by MWI method and or...
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