On the mechanism of epoxidation of alkenes with hypochlorite, catalysed by manganese (III) tetraarylporphyrins

AW Van der Made, RJM Nolte…

Index: Made, A. W. van der; Nolte, R. J. M.; Drenth, W. Recueil des Travaux Chimiques des Pays-Bas, 1990 , vol. 109, # 11 p. 537 - 551

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Citation Number: 23

Abstract

Abstract A detailed mechanistic study of the epoxidation of alkenes by the cytochrome-P-450 model sodium hypochlorite/manganese (III) tetraarylporphyrin is presented. From the zero- order rate dependence on alkene concentration and low-temperature-trapping experiments with the hydrogen-atom donor 1, 1-diphenyl-2-picrylhydrazine (DPPH), it is concluded that the formation of the active [(P) MnO]+ species from a (P) MnOCl complex is the rate- ...