Efficient oxidation of sulfides using a molybdenum(VI)–dioxo complex containing an benzimidazole ligand
الموضوعات : Iranian Journal of CatalysisBozorgmehr Maddah 1 , Arash Sarabi Tabrizi 2
1 - Department of Chemistry, Imam Hossein University, Tehran, Iran
2 - Department of Chemistry, Imam Hossein University, Tehran, Iran
الکلمات المفتاحية: oxidation, Sulfide, Dioxomolybdenum(VI) complex, UHP,
ملخص المقالة :
For the first time, dioxomolybdenum(VI) complex with the general formula [MoO2L2] containing a N-O bidentate ligands (HL=2-(o-aminophenyl)- benzimidazole) has been used for the oxidation of sulfides. Elemental analyses (carbon, hydrogen, nitrogen), FT-IR and Uv-Visble spectra and 1HNMR analysis agree well with the proposed stoicheiometry of the complex [MoO2L2]. A variety of sulfides were smoothly converted into the corresponding sulfoxide catalyzed by this molybdenum complex. The effect of the reaction conditions on the oxidation was studied by varying the amount of the catalyst, the amount of oxidant (UHP) and solvent type. Good yields with excellent selectivities were obtained in most cases.
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