Silica supported Ru(salophen)Cl: An efficient and robust heterogeneous catalyst for epoxidation of alkenes with sodium periodate

被引：18
|
作者：
Hatefi, Mehdi [2 ]
Moghadam, Majid [1 ,3 ]
Mirkhani, Valiollah [1 ]
Sheikhshoaei, Iran [2 ]
机构：
[1] Univ Isfahan, Catalysis Div, Dept Chem, Esfahan 8174673441, Iran
[2] Shahid Bahonar Univ, Dept Chem, Kerman, Iran
[3] Univ Isfahan, Dept Nanotechnol Engn, Esfahan 8174673441, Iran
来源：
POLYHEDRON | 2010年 / 29卷 / 15期
关键词：
Silica; Ru(III) salophen; Alkene epoxidation; Periodate; Supported catalyst; ALKANE HYDROXYLATION CATALYST; POLYSTYRENE-BOUND IMIDAZOLE; ENANTIOSELECTIVE EPOXIDATION; SALEN COMPLEXES; AXIAL LIGAND; ASYMMETRIC EPOXIDATION; MN(SALEN) COMPLEXES; MN-SALEN; RUTHENIUM; MN(SALOPHEN)CL;
D O I：
10.1016/j.poly.2010.07.019
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
In the present work, heterogenization of Ru(salophen)Cl via its axial ligation to silica-bound imidazole, Silm, is reported. The heterogeneous catalyst, [Ru(salophen)Cl-Silm], was characterized by elemental analysis, SEM, TEM, FT-IR and diffuse reflectance UV-Vis spectroscopic techniques. The catalyst, which is not soluble in water and common organic solvents, was used for efficient epoxidation of cyclic and linear alkenes with NaIO4 under agitation with magnetic stirring. This new heterogenized catalyst is of high stability and reusability in the oxidation reactions. The effect of reaction parameters such as solvent and oxidant in the epoxidation of cis-cyclooctene were also investigated. (C) 2010 Elsevier Ltd. All rights reserved.
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页码：2953 / 2958
页数：6
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