Methods for the Synthesis of Phthalic Acid Dichlorides

Isophthalic and terephthalic acid chlorides (also known as isophthaloyl and terephthaloyl chlorides) are without doubt strategically important compounds. One area in which they are used is the synthesis of aramid fibers employed in the production of dual-purpose functional and construction materials...

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Bibliographic Details
Published in:Catalysis in industry 2020, Vol.12 (1), p.29-38
Main Authors: Yushchenko, D. Yu, Zhizhina, E. G., Pai, Z. P.
Format: Article
Language:English
Subjects:
Catalysis
Catalysis in Chemical and Petrochemical Industry
Chemistry
Chemistry and Materials Science
Chlorides
Construction materials
Dichlorides
Raw materials
Terephthalic acid
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Summary:Isophthalic and terephthalic acid chlorides (also known as isophthaloyl and terephthaloyl chlorides) are without doubt strategically important compounds. One area in which they are used is the synthesis of aramid fibers employed in the production of dual-purpose functional and construction materials. These include Terlon®, SVM®, Armos®, Fenilon®, Togilen®, and Rusar®. Special requirements for the quality of target acid dichlorides and raw materials used in their synthesis often determine how these compounds are obtained. Different methods for the synthesis of iso- and terephthaloyl chlorides (including catalytic syntheses), in which different initial materials are used, are considered below. The main methods for the analysis of the above compounds are described in detail.
ISSN:2070-0504
2070-0555
DOI:10.1134/S2070050420010110