Economical Oxygenation of Olefins and Sulfides Catalyzed by New Molybdenum(VI) Tridentate Schiff Base Complexes: Synthesis and Crystal Structure |
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| Authors: | Dr. Abdolreza Rezaeifard Dr. Maasoumeh Jafarpour Heidar Raissi Mahboubeh Alipour Helen Stoeckli‐Evans |
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| Affiliation: | 1. Email:rrezaeifard@birjand.ac.ir;5. rrezaeifard@gmail.com;6. Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand, Birjand, 97179–414, Iran;7. Institute of Physics, University of Neuchatel, Rue Emile‐Argand 11, 2009 Neuchatel, Switzerland |
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| Abstract: | Abstract. New cis‐dioxomolybdenum(VI) complexes (MoO2YxCH3OH) were synthesized using MoO2(acac)2 and 2[(1‐hydroxy‐2‐methylpropane‐2‐ylimino)methyl]phenol derivatives as tridentate ONO donor Schiff base ligands (H2Yx). MoY1 was crystallized in orthorhombic space group Pbca. The epoxidation of olefins using tert‐butyl hydroperoxide and oxidation of sulfides to the sulfoxides by hydrogen peroxide were efficiently enhanced by the catalytic activity of title MoVI complexes with excellent selectivity. The high efficiency and relative stability of the catalysts was observed by turnover number and UV/Vis investigations. The electron‐rich and bulky ligands promoted the effectiveness of the catalysts. |
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| Keywords: | Molybdenum Schiff base Peroxides Oxygenation Catalysis |
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