Hammett Relationship in Cyclohexane Hydroxylation Catalyzed by Metalloporphyrins

Abstract

Abstract: Forty mono-iron and manganese porphyrins, u-oxo bis-iron and manganese porphyrins with different substituents Ron the porphyrin peripheral ring were synthesized.The cyclohexane hydroxylation catalyzed by these metalloporphyrins under mild conditions and the self-oxidation of these metalloporphyrins with PhIOwere studied.The linear free energy relationship was first found for above reaction systems.Some new results and rules were obtained by carrying out correlation analysis for these two reactions.According to these results and rules, a possible mechanism for the hydrocarbon hydroxylation catalyzed by metalloporphyrins was proposed.

Key words: Metalloporphyrin, Biocatalysis, Hammett relationship

TrendMD:

GUO Can-Cheng, LI Zhi-Peng, LIANG Ben-Xi. Hammett Relationship in Cyclohexane Hydroxylation Catalyzed by Metalloporphyrins[J]. Chem. J. Chinese Universities, 1997, 18(2): 242.

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Hammett Relationship in Cyclohexane Hydroxylation Catalyzed by Metalloporphyrins

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