Selective oxidation of o -nitrotoluene to o -nitrobenzaldehyde with metalloporphyrins as biomimetic catalysts

2009, Volume 3, Issue 4

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Frontiers of Chemical Science and Engineering >> 2009, Volume 3, Issue 4 doi: 10.1007/s11705-009-0167-8

Selective oxidation of o -nitrotoluene to o -nitrobenzaldehyde with metalloporphyrins as biomimetic catalysts

Institute of Green Chemistry and Fine Chemicals, Beijing University of Technology, Beijing 100124, China;

Available online: 2009-12-05

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Abstract

Selective oxidation of -nitrotoluene to -nitrobenzaldehyde with metalloporphyrins as biomimetic catalysts was studied. The peripheral substituent around porphyrin rings and various process parameters of NaOH concentration, reaction temperature, reaction time and oxygen pressure all affect the selectivity of -nitrobenzaldehyde. Further, 82.0% selectivity of -nitrobenzaldehyde was achieved under the optimum conditions: 1.0×10mol•L of T(-NO)PPFeCl catalyst, 2.5mol•L of NaOH, 0.2mol•L of -nitrotoluene, 45°C and 2.0MPa for 6h.

Keywords

-nitrobenzaldehyde ; temperature ; biomimetic ; selectivity ; pressure

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