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Oxidation of 2,3‐butanediol by alkaline hexacyanoferrate(III) using Ru(III) or Ru(VI) as catalyst
Author(s) -
Poblete F. J.,
Mucientes A. E.,
Villarreal S.,
Santiago F.,
Cabañas B.,
Gabaldón R. E.
Publication year - 2006
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.1090
Subject(s) - chemistry , catalysis , ruthenium , substrate (aquarium) , inorganic chemistry , decomposition , carbocation , reaction rate , reaction rate constant , kinetics , photochemistry , organic chemistry , oceanography , physics , quantum mechanics , geology
The reactions of 2,3‐butanediol by hexacyanoferrate(III) in alkaline medium using ruthenium compounds as catalysts have been studied spectrophotometrically. The effect on the reaction rate of concentration of substrate, oxidant, catalyst and basicity of the medium leads to similar experimental rate equations for both catalysts, Ru(III) and Ru(VI). The reaction mechanism involves the formation of a catalyst–substrate complex that yields a carbocation for Ru(VI) or a radical for Ru(III) oxidation. Hexacyanoferrate(III)'s role is the catalyst regeneration. The rate constants of complex decomposition and catalyst regeneration have been determined. Copyright © 2006 John Wiley & Sons, Ltd.