Application of fullerenes as catalysts in the catalytic hydrogenation of nitro groups in nitroaromatic compounds under light irradiation

Abstract

The invention discloses the application of a fullerene as a catalyst in the catalytic hydrogenation reaction of nitro groups in nitroaromatic compounds under light irradiation conditions. Nitroaromatic compounds include nitrobenzene, chloronitrobenzene and nitroaromatic ketones and nitriles. The fullerene catalyst is any one of monovalent C60 anion, neutral C60 or neutral C70. The invention utilizes a non-metallic catalytic system to activate hydrogen molecules and selectively catalyze the hydrogenation reaction of nitro groups under light irradiation, normal temperature and normal pressure conditions. The fullerene catalyst has the outstanding advantages of high activity and high selectivity. Ecological hazards and environmental hazards generated by catalytic reactions are reduced.

Description

technical field [0001] The present invention relates to a kind of application of catalyzer, specifically fullerene is used as catalyzer at normal temperature, normal pressure (1 H 2 Air pressure) and the application of selective hydrogenation of nitroaromatic compounds to prepare aminoaromatic compounds under light conditions. 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: chemical reduction method of metal powder under acidic conditions, electrochemical reduction method and catalytic hydrogenation method. [0003] 1. The metal powder-acid chemical reduction method produces a large amount of inorganic salt was...

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 with the catalysts currently in use.

But so far there is no report on its application in nitroaromatic compounds

Images