Studies on the Syntheses of Metalloporphyrins and Biomimesis for Cytochrome P-450(XIV)--Catalysis of TPPCo(Ⅱ) for Cyclohexane Monooxygenation

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (7): 1051.

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Studies on the Syntheses of Metalloporphyrins and Biomimesis for Cytochrome P-450(XIV)--Catalysis of TPPCo(Ⅱ) for Cyclohexane Monooxygenation

CHEN Xin-Bin, GUO Can-Cheng, LIANG Ben-Xi, RAO Zong-Hai, YANG Zhi-Guo

Department of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082

Received:1994-07-13 Revised:1995-01-27 Online:1995-07-24 Published:1995-07-24

Abstract

Abstract: This paper reports the catalysis of TPPCo(Ⅱ) for cyclohexane monooxygenation with PhIO. The kinetic properties, the temperature effect and the effect of axial ligands of the reactions were studied. The results show that TPPCo(Ⅱ) with axial ligand pyridine can catalyze cyclohexane monooxygenation with PhIO and that the catalytic properties are related to the reaction temperature and the quantity of pyridine. The rates of the reactions can increase with the increase of the reaction temperature. There is Arrhenius relationship between the rate constants of the reactions and the reaction temperature. The yields of the products decrease with the increase of the reaction temperature. The catalytic effect of TPPCo(Ⅱ) is the best when the quantity of pyridine is 50 times that of TPPCo(Ⅱ).

Key words: Porphyrin, Catalysis, Oxidation reaction, Temperature effect

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CHEN Xin-Bin, GUO Can-Cheng, LIANG Ben-Xi, RAO Zong-Hai, YANG Zhi-Guo . Studies on the Syntheses of Metalloporphyrins and Biomimesis for Cytochrome P-450(XIV)--Catalysis of TPPCo(Ⅱ) for Cyclohexane Monooxygenation[J]. Chem. J. Chinese Universities, 1995, 16(7): 1051.

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Studies on the Syntheses of Metalloporphyrins and Biomimesis for Cytochrome P-450(XIV)--Catalysis of TPPCo(Ⅱ) for Cyclohexane Monooxygenation

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