Manganese(III) tetrapyridylporphyrin-Wells-Dawson type polyoxotungstate hybrid material: Synthesis, characterization and study of its application in the alkene epoxidation
نویسندگان
1 Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran
2 Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran
3 Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran
4 Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran
5 Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran
doi
10.22036/j10.22036.2025.470341.1171چکیده
Efficient epoxidation of olefins catalyzed by a new metalloporphyrin-Wells-Dawson polyoxotungstates hybrid material is reported. First, the lacunary α2-[P2W17O61]10- was functionalized with 3-chloropropyltrimethoxysilane and then, the hybrid compound was prepared through addition of tetra(4-N-pyridyl)porphyrinatomanganese(III) acetate to this functionalized POM. The hybrid catalyst was characterized by FT-IR, UV-Vis, 1H and 31P-NMR spectroscopic methods and cyclic voltammetry. The catalyst was applied for alkene epoxidation with NaIO4 in CH3CN/H2O mixture at room temperature. The effect of reaction parameters and reusability of the hybrid catalyst were also investigated.
