Abstract
AbstractThe oxidation of sodium lactate, 2‐methyl‐2,4‐pentanediol, 2,4‐butanediol, 2‐butanol and 2‐propanol upon treatment with alkaline hexacyanoferrate(III) using a Ru(VI) catalyst is highly effective for the oxidation of alcohols by ${\rm Fe}({\rm CN})_{6}^{3{-} }$. The reaction mechanism proposed involves the oxidation of the alcohol by the catalyst, a process that occurs through the formation of a substrate‐catalyst complex. The decomposition of this complex yields Ru(IV) and a carbocation (owing to a hydride transfer from the α‐CH bond of the alcohol to the oxoligand of ruthenium). The role of the co‐oxidant, hexacyanoferrate(III), is to regenerate the catalyst. In the oxidation reactions, the rate constants for complex decomposition and catalyst regeneration have been determined and a comparative study of the structure versus reactivity has been carried out. Copyright © 2010 John Wiley & Sons, Ltd.
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