A method for preparing nitroso-containing aromatic compounds from amino-containing aromatic compounds

By using a single hydrogen sulfate composite salt as an oxidant, at a low temperature, the oxidation reaction with amino -containing aromatherapy compounds is performed, and the nitrotic aromatherapy compounds are gradually prepared to solve the problems of environmental pollution and by -products in existing technologies. A mild response conditions and high conversion rates are achieved, suitable for industrialized applications.

CN116120185BActive Publication Date: 2025-01-28ANHUI RES INST OF CHEM IND
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Patent Information

Application Number
CN202310104004.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-13
Publication Date
2025-01-28
Estimated Expiration
2043-02-13

AI Technical Summary

Technical Problem

In the prior art, when synthesizing nitroso-containing aromatic compounds, metal or non-metallic catalysts are usually required, which leads to environmental pollution and by-product generation, and the reaction conditions are relatively harsh, which increases the experimental risk and production costs.

Method used

Using a single hydrogen sulfate composite salt as an oxidant, the oxidation reaction with amino -containing aromatherapy compounds at low temperature is gradually heating up to oxidize, and nitrobic aromatherapy compounds are prepared.

Benefits of technology

This method reduces the difficulty of reaction costs and the recycling of oxidants, avoids environmental pollution and by -product production in traditional processes, and achieves mild response conditions and high conversion rates, suitable for industrialized applications.

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Patent Text Reader

Abstract

The invention discloses a method for preparing a nitroso-containing aromatic compound from an amino-containing aromatic compound, wherein the amino-containing aromatic compound is used as a substrate raw material for an oxidation reaction, and the method comprises the following steps: adding water and an oxidant into a reactor, stirring and mixing at a low temperature, and obtaining a first mixed solution; adding a substrate raw material into the first mixed solution, and keeping the mixture warm at a low temperature, and subjecting the substrate raw material to an oxidation reaction with the oxidant in the presence of an oxidant and water through a programmed temperature rise, and obtaining a nitroso-containing aromatic compound. The synthesis method of the invention has a high conversion rate, mild reaction conditions, and is green and environmentally friendly, reduces the difficulty of post-processing, and avoids the risks existing in the traditional oxidation process.
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Citation Information

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