Citation:
ZHOU Wei-You, HU Bing-Cheng, LIU Zu-Liang. Selective Oxidation of Cyclohexane Catalyzed by Metallo-Deuteroporphyrins in Homogeneous Solution[J]. Chinese Journal of Applied Chemistry,
;2010, 27(4): 424-427.
doi:
10.3724/SP.J.1095.2010.90363
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To search for the efficient biomimetic catalysts for the oxidation of hydrocarbon, cobalt deuteroporphyrin[Co(DPDME)] was used as catalyst for the oxidation of cyclohexane with air.The effects of reaction temperature,pressure of air,the catalyst amount and different complexes were evaluated.The experiment results show that Co(DPDME) is more effective than the others,and the optimum reaction conditions for the oxidation of cyclohexane are:c=0.015 mmol/L,reaction temperature 423 K,pressure of air 0.8 MPa,reaction time 5 h.Under the optimum conditions,the conversion rate of cyclohexane could reaches to 18.2%,the total selectivity of cyclohexanol and cyclohexanone is 87.4%.The temperature has much more influence on the catalytic reaction.Although the stability of Co(DPDME) was reduced when the temperature is higher than 443 K,the turnover number reaches 66 646.We also discussed the possible reaction path of Co(DPDME)-catalyzed oxidation of cyclohexane with oxygen.
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Keywords:
- metallo-deuteroporphyrin,
- cyclohexane,
- selective oxidation
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