Preparation method of 2-carboxylic acid diphenyliodide

By using potassium persulfate and heteropolyacid metal salt catalysts in an acidic solvent to synthesize 2-carboxylic acid diphenyl iodide under controlled temperature, the problems of high energy consumption and low purity in existing technologies have been solved, achieving the preparation of high-purity and high-yield products, and reducing environmental pollution and production costs.

CN122079759APending Publication Date: 2026-05-26SHIJIAZHUANG SAN TAI CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHIJIAZHUANG SAN TAI CHEM CO LTD
Filing Date
2024-11-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing synthetic route for 2-carboxylic acid diphenyliodide consumes a large amount of energy, the purity of the product is difficult to meet the requirements of electronic chemical raw materials, and there are also environmental pollution problems.

Method used

Using 2-iodobenzoic acid and benzene as raw materials, and with potassium persulfate and heteropolyacid metal salts as mixed catalysts in an acidic solvent, and with the temperature controlled at 10℃~20℃, diphenyl iodide of 2-carboxylic acid was synthesized, and a high-purity product was obtained through a purification process.

Benefits of technology

2-Carboxylic acid diphenyliodide ester with a purity of over 99.9% was prepared with a yield of 90%, meeting the requirements for electronic chemical raw materials, reducing side reactions and environmental pollution, and lowering production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a method for preparing 2-carboxylic acid diphenyl iodide ester. The method involves using 2-iodobenzoic acid and benzene as raw materials in an acidic solvent, with potassium persulfate and a heteropolyacid metal salt as a mixed catalyst, and controlling the reaction temperature at 10℃~20℃ to synthesize 2-carboxylic acid diphenyl iodide ester. The product is then purified. The mass ratio of 2-iodobenzoic acid, benzene, and the mixed catalyst in this invention is 250:85~95:2~5. The synthetic route is simple, and the purity of the prepared product is over 99.9%, meeting the high purity requirements of electronic chemical raw materials. The yield can reach approximately 90%, demonstrating high industrial application value. Furthermore, the catalyst used in this invention can be recycled, further reducing production costs.
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