Dioxomolybdenum(VI) complexes of hydrazone phenolate ligands -syntheses and activities in catalytic oxidation reactions
Hossain, M. K., Plutenko, M. O., Schachner, J. A., Haukka, M., Mösch-Zanetti, N. C., Fritsky, I. O., & Nordlander, E. (2021). Dioxomolybdenum(VI) complexes of hydrazone phenolate ligands -syntheses and activities in catalytic oxidation reactions. Journal of the Indian Chemical Society, 98(2), Article 100006. https://doi.org/10.1016/j.jics.2021.100006
Published inJournal of the Indian Chemical Society
DisciplineEpäorgaaninen ja analyyttinen kemiaEpäorgaaninen kemiaInorganic and Analytical ChemistryInorganic Chemistry
© 2021 Indian Chemical Society
The new cis-dioxomolybdenum(VI) complexes [MoO2(L2)(H2O)] (2) and [MoO2(L3) (H2O)] (3) containing the tridentate hydrazone-based ligands (H2L2 = N'-(3,5-di-tert-butyl-2-hydroxybenzylidene)-4-methylbenzohydrazide and H2L3 = N'-(2-hydroxybenzylidene)-2-(hydroxyimino)propanehydrazide) have been synthesised and characterized via IR, 1H and 13C NMR spectroscopy, mass spectrometry, and single crystal X-ray diffraction analysis. The catalytic activities of complexes 2 and 3, and the analogous known complex [MoO2(L1)(H2O)] (1) (H2L1 = N'-(2-hydroxybenzylidene)-4-methylbenzohydrazide) have been evaluated for various oxidation reactions, viz. oxygen atom transfer from dimethyl sulfoxide to triphenylphosphine, and sulfoxidation of methyl-p-tolylsulfide or epoxidation of different alkenes using tert-butyl hydroperoxide as terminal oxidant. The catalytic activities were found to be comparable for all three complexes, but complexes 1 and 3 showed better catalytic performances than complex 2, which contains a more sterically demanding ligand than the other two complexes. ...
PublisherElsevier B.V.; Indian Chemical Society
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Additional information about fundingThis research has been carried out within the framework of COST Action CM1003 Biological oxidation reactions - mechanisms and design of new catalysts. M.K.H. thanks the European Commission for an Erasmus Mundus predoctoral fellowship. E.N and I.F. thank the Swedish Institute for a joint collaborative grant from the Visby program.
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