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Type: Artigo de periódico
Title: On The Kinetics Of Epoxidation Of Olefins By Cis And Trans-[rucl 2(dppb)(2,2′-bipy)] Complexes
Author: Bogado A.L.
De Souza R.F.
Schuchardt U.
Batista A.A.
Abstract: The kinetics of the epoxidation of cis-cyclooetene, 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 1 and 2 in the epoxidation of cis-cyclooctene, 2-norbornene and limonene are respectively (1) Vmax = 8.62, 11.6 and 4.98 moll-1 min-1 and (2) Vmax = 4.28, 7.55 and 5. 66 moll-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. © 2003 Elsevier B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/S1381-1169(03)00353-4
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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