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A binuclear manganese complex of a pyridoxal derivative and its use as an oxidation catalyst

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Summary

A new binuclear complex of manganese, [Mn2L(OAc)2], where H3L = N,N′-[4(3-hydroxy-5-hydroxymethyl-2-methyl)pyridylmethylene]-1,3-diamionopropane-2-ol, was prepared and characterized by analysis and various spectral methods. The studies reveal that it is a mixed valence manganese(II)/manganese(III) complex with endogenous μ-oxo and exogenous μ-carboxylato bridges.

The complex can be used as a catalyst for the selective oxidation of hydrocarbons (cyclohexene, cis-cyclooctene, styrene, norbornene and trans-4-octene) using terminal oxidant at ambient temperatures. The yields calculated on the basis of the oxidant concentrations indicate that the complex works as an efficient catalyst for the oxidation of hydrocarbons. A probable mechanism for the reaction is proposed.

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Authors and Affiliations

  1. Chemistry Department, Faculty of Science, M.S. University of Baroda, 390 002, Baroda, India

    Neelima D. Kulkarni & Mukesh J. Upadhyay

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  1. Neelima D. Kulkarni
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  2. Mukesh J. Upadhyay
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Kulkarni, N.D., Upadhyay, M.J. A binuclear manganese complex of a pyridoxal derivative and its use as an oxidation catalyst. Transition Met Chem 19, 4–16 (1994). https://doi.org/10.1007/BF00166255

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  • DOI: https://doi.org/10.1007/BF00166255

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