Perfluorinated Carboxylic Acids. Synthesis and Application.

Novosibirsk Organic Chemistry Institute of named after N.N. Vorojtsov Of  RAS  Siberian Department
Ac. Lavrentiev avenue, 9. Novosibirsk, Russia, 630090
E-mail : furin@nioch.nsc.ru

Dedicated to Professor Hermann-Josef Frohn on the Occasion of his 60th Birthday

In this article you will find data regarding perfluorinated carboxylic acids obtaining methods, in particular electrochemical fluorination of hydrocarbon derivatives in anhydrous hydrogen fluoride, perfluoroolefines and telomeric alcohols oxidizing, perfluoralkyliodides and carbon dioxide interaction in the presence of initiators. Some characteristics of perfluorinated carboxylic acids are discussed in this article. Using of these characteristics for creating of new semi-products, used for fluororganic synthesis is discussed here. Practical application examples of both perfluorinated carboxylic acids and semi-products based on them for creating of new generation fluorine materials are given in this article.

Table of content

1. Introduction. The role of fluorine compounds in development and perfection of materials for the new techniques.

2. The Synthesis of Perfluorinated carboxylic acids.
2.1. Electrochemical fluorination of carboxylic acids and some of their derivatives in anhydrous hydrogen fluoride.
2.2. Oxidization processes of linear and cyclic perfluorolefines and other fluorine-containing compounds.
2.2.1. The perfluorolefines reactions with ozone.
2.2.2. Innovations in the oxidization processes of perfluorolefines' double bond up to perfluoroalkanecarboxylic acids.
2.2.3. The oxidization of telomeric alcohols and polyfluoroaromatic compounds.
2.2.4. The reactions of perfluoroalkylhalogenides under influence of initiators.
2.2.5. The synthesis of perfluorocarboxylic acids out of other classes compounds.

3. The characteristics of perfluorocarboxylic acids and practical application of fluorine materials obtained on their basis.
3.1. Decarboxylation and decarbonization of perfluorocarboxylic acids.
3.2. Surface-active materials on the base of perfluorocarboxylic acids derivatives.
3.3. Surface-active agents as fire-extinguishing materials.
3.4. Compositions for treatment of articles surfaces, rust-proofing coatings.

Conclusion

References.