Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/68702
Type: Artigo de periódico
Title: On the kinetics of epoxidation of olefins by cis and trans-[RuCl2(dppb)(2,2 '-bipy)] complexes
Author: Bogado, AL
de Souza, RF
Schuchardt, U
Batista, AA
Abstract: The kinetics of the epoxidation of cis-cyclooctene, 2-norbornene and limonene catalyzed by cis-[RuCl2(dppb)(2',2'-bipy)] (1) or trans-[RuCl2(dppb)(2,2'-bipy)] (2) (where, dppb: 1,4-bis(diphenylphosphino)butane; 2,2'-bipy: 2,2'-bipyridine) in the presence of iodosylbenzene (PhIO) follow a Michaelis-Menten type mechanism. The performance of I and 2 in the epoxidation of cis-cyclooctene, 2-norbornene and limonene are respectively (1) V-max = 8.62,11.6 and 4.98 mol 1(-1) min(-1) and (2) V-max = 4.28, 7.55 and 5.66 mol 1(-1) min(-1). The activation energies of the epoxidations catalyzed by 1 are 1.5-3.3 kcal mol(-1) lower than those measured for 2. (C) 2003 Elsevier B.V. All rights reserved.
Subject: ruthenium complexes
alkenes
Michaelis-Menten mechanism
epoxidation
iodosylbenzene
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/S1381-1169(03)00353-4
Date Issue: 2003
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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