Synthesis method of bis-ethyl hexyloxyphenol methoxyphenyl triazine

By using p-bromoanisole and chloroisooctane as raw materials, combined with xylene as a single solvent and recrystallization technology, the production process of bis-ethylhexyloxyphenol methoxyphenyl triazine was optimized, solving the problems of impure solvents and excessive wastewater in the existing technology, and achieving high-purity and high-efficiency product production.

CN122059892APending Publication Date: 2026-05-19SANMENXIA AOKE TECH CO LTD
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Patent Information

Application Number
CN202610479438.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing synthesis process of bis-ethylhexyloxyphenol methoxyphenyl triazine is characterized by mixed solvents, large amounts of wastewater and solid waste, high cost and unstable quality, making it difficult to achieve high yield and high purity production.

Method used

Using p-bromoanisole, chloroisooctane, or bromoisooctane as raw materials, xylene as a single solvent, and combining recrystallization technology, the production process is optimized through Grignard reaction and zinc chloride catalysis to improve product purity and reduce costs.

Benefits of technology

The production of high-purity bis-ethylhexyloxyphenol methoxyphenyl triazine has been achieved, reducing production costs, wastewater and solid waste treatment, and improving product quality and production efficiency.

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Abstract

The invention discloses a synthesis method of bis-ethyl hexyloxyphenol methoxyphenyl triazine, which relates to the technical field of organic chemistry, and comprises the following steps: preparing an intermediate I, putting zinc chloride into reaction, adding xylene for dispersion, dropwise adding the intermediate I, resorcinol and xylene solvent to obtain a yellow intermediate II crude product, and then adding the yellow intermediate II crude product into the reaction kettle to obtain the bis-ethyl hexyloxyphenol methoxyphenyl triazine. Adding the intermediate II, a xylene solvent, an acid-binding agent, chloro-isooctane and bromo-isooctane into a reaction kettle, carrying out reaction treatment to obtain a high-purity product, and carrying out sampling detection on the step 1, the step 2 and the step 3. According to the synthesis method of the bis-ethyl hexyloxyphenol methoxyphenyl triazine, p-bromoanisole and chloro-isooctane or bromo-isooctane are adopted as raw materials, the production cost is reduced, xylene is a single solvent, the problem that a mixed solvent is difficult to recycle is solved, anhydrous aluminum chloride or anhydrous zinc chloride is adopted as a catalyst, and a recrystallization technology is adopted, so that the yield of the bis-ethyl hexyloxyphenol methoxyphenyl triazine is increased. The purity of the product is improved, and the bis-ethyl hexyloxyphenol methoxyphenyl triazine with higher purity is prepared.
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