Kinetics and mechanism of the epoxidation of fumaric acid with aqueous hydrogen peroxide catalyzed by sodium tungstate or sodium molybdate
1975; Elsevier BV; Volume: 39; Issue: 2 Linguagem: Inglês
10.1016/0021-9517(75)90330-9
ISSN1090-2694
Autores Tópico(s)Catalysis and Oxidation Reactions
ResumoThe kinetics of epoxidation of fumaric acid by hydrogen peroxide in the presence of sodium tungstate or molybdate have been studied. Tungstate catalyzed epoxidation of fumaric acid to trans-epoxysuccinic acid is faster than that for molybdate catalysis. The reaction is first order with respect to substrate and catalyst and zero order with respect to hydrogen peroxide. Based on substituent, solvent, and salt effects, our opinion is that the mechanism of the epoxidation step is related to polar (electrophilic) character.
Referência(s)