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The mechanism of disproportionation of D-glucose catalysed by hydridochlorocarbonyltris(triphenyl-phosphine)ruthenium(II) in tetrahydrofurfuryl alcohol
S. Vancheesan, Jayaraman Rajaram, Joseph C. Kuriacose
Published in
Volume: 22
Issue: 2
Pages: 137 - 144
The disproportionation of D-glucose in tetrahydrofurfuryl alcohol (THFA) catalysed by RuHCl(CO)(PPh3)3is suggested to proceed by hydride transfer from a dissociated catalyst species to the coordinated aldehyde form of glucose. Subsequent steps involve the coordination of the pyranose form of glucose, formation of the metal alkoxide, release of D-glucitol and hydrogen transfer from alkoxide to the metal. The kinetic data are compatible with the rate expression, rate = (kK[G][Ru]0)/([P] + K), where k, K, [G], [Ru]0 and [P] represent the rate constant of the rate-determining step, the equilibrium constant for the dissociation of the catalyst, concentrations of glucose, catalyst and added triphenylphosphine respectively. © 1983.
About the journal
JournalJournal of Molecular Catalysis
Open AccessNo
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