Application of fullerene as catalyst in catalytic hydrogenation reaction of nitro aromatic compound

Abstract

The invention discloses application of fullerene as a catalyst in a catalytic hydrogenation reaction of a nitro aromatic compound. The nitro aromatic compound comprises nitrobenzene, chloronitrobenzene and nitro aromatic aldehyde, ketone and nitrile. The fullerene catalyst is any one of univalent C60 negative ions, bivalent C60 negative ions, a mixture of the univalent C60 negative ions and the bivalent C60 negative ions, and univalent C70 negative ions. The fullerene negative ion catalyst is obtained by reducing with a Ni-Al alloy in a sodium hydroxide water solution. By using a nonmetal system, hydrogen molecules are activated, and the nitro hydrogenation reaction is selectively catalyzed. The catalyst has the remarkable advantages of high activity and high selectivity, and reduces the ecological risk and environmental hazard generated by catalytic reaction.

Description

technical field [0001] The invention relates to the application of a catalyst, in particular to the application of fullerene as a catalyst in the selective hydrogenation of nitro aromatic compounds to prepare amino aromatic compounds and azoxy aromatic compounds. Background technique [0002] Efficient and selective catalytic hydrogenation of aromatic nitro compounds is of great significance in the industrial field. Aminoaromatic compounds are very important chemical intermediates, which can be used to synthesize various fine chemicals such as pesticides, drugs, and photoelectric functional molecules. At present, the preparation methods of aminoaromatic compounds include: metal powder-acid chemical reduction method, electrochemical reduction method, and catalytic hydrogenation method. [0003] 1. The metal powder-acid chemical reduction method produces a large amount of inorganic salt waste and by-products, which not only pollutes the environment, but also wastes resources ...

AI Technical Summary

Problems solved by technology

[0003] 1. The metal powder-acid chemical reduction method produces a large amount of inorganic salt waste and by-products, which not only pollutes the environment, but also wastes resources and does not meet the requirements of green chemistry and resource conservation

Electrochemical reduction method has high requirements on electrodes, electrolyte and electrolytic cell, and is not suitable for mass production

[0004] 2. The catalysts used in the catalytic hydrogenation method are metal catalysts such as Raney nickel and platinum. Metal catalysts have the disadvantages of environmental pollution, ecological hazards and high cost

[0005] 3. When there are hydrogenation functional groups such as aldehydes, ketones, and nitriles in nitroaromatic compounds, the selective control of nitrohydrogenation is a common problem for currently used catalysts

In terms of catalytic reactions, it has been applied to photocatalytic oxidation reactions and photoactivation and electrical activation of nitrogen molecules, but it has not been applied to other catalytic reactions so far.