Mechanism of oxidative dehydrogenation of alcohols co-ordinated to ruthenium

Ridd, Michael J., Gakowski, David J., Sneddon, Graeme E., and Keene, F. Richard (1992) Mechanism of oxidative dehydrogenation of alcohols co-ordinated to ruthenium. Dalton Transactions (12). pp. 1949-1956.

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The oxidative dehydrogenation of the complexes [Ru(bipy)₂(NC₅H₄CH₂OH)]²⁺, [Ru(bipy)₂(NC₅H₄CD₂OH)]²⁺ and [Ru(bipy)₂{NC₅H₄CH(CH₃)OH}]2+ to the corresponding carbonyl species [bipy = 2,2'-bipyridine; NC₅H₄CH₂OH = 2-(hydroxymethyl)pyridine; NC₅H₄CD₂OH = 2-(dideuteriohydroxymethyl)pyridine; NC₅H₄CH(CH₃)OH = 2-(1-hydroxyethyl)pyridine] has been studied in aqueous solution by kinetic and electrochemical techniques. The mechanistic scheme was found to involve the intermediacy of a ruthenium(IV)–alkoxide species, formed by disproportionaton of the ruthenium(III) complex produced in the initial step of the oxidation process. The rate-determining removal of the proton from the α-carbon atom of the chelate ring is general-base catalysed.

Item ID: 22807
Item Type: Article (Research - C1)
ISSN: 1477-9234
Keywords: macrocyclic complexes; aqueous-solutions; pulse-radiolysis; ligand; amines; photolysis; nickel(II); kinetics; ion
Date Deposited: 15 Aug 2012 01:26
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030207 Transition Metal Chemistry @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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