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

The sweeping development of fluoroorganic compounds chemistry is tightly connected with new materials consumers. They began to be used for atmospheric and salt corrosion protection of metals and alloys and they also started to be used as lubricating oils, used on aggressive conditions, as heat transfers, as liquids for vacuum pumps, working in corrosion active media, as additives to oils, used in compressors of different purposes at increased pressure and they are used in hydraulic liquids.

These perfluorinated semi-products serve as the basis for creation of fluorine materials, which in the future can be used as:

1. Components of flotation reagents for isolation of different non-ferrous metals and mediums at materials and ores mechanochemical desintegration carrying out

2. Lubricants, functioning at high and low temperatures (below -70 ^oC), increasing durability and mechanical facilities life

3. High temperature heat transfers both for items heating and for heat isolation and utilization

4. Excellent dielectrics and thermal properties allow to use these compounds for items, requiring high security and durability, and they increase fire safety and exploitation of electric machines

5. Fire-safe liquids for oil-filled transformator' leading-ins and oil rectifiers

Perfluorinated compounds are the compounds of present and future. The production of such perfluorinated organic compounds, which meet modern requirements by their thermal and dielectric characteristics, work in a wide range of temperatures and thermal loads and find their practical application, is already settled. The complete substitution of hydrogen atoms by fluorine in the organic molecule results in abrupt changing of properties, that is used to create materials of a new generation with excellent operating characteristics. All this adds such qualities to the materials as:

- incombustibility, un-toxicity,
- low viscosity, low freezing points,
- inertness to metals and other materials of construction,
- low dissolubility in water and low dissolubility of water in perfluorinated liquids.

The chemistry and technology of fluoroorganic compounds are the ones of the most fast developing branches of chemistry, that is because of national economy demands in different fluorine materials. Polyfluorinated carboxylic acids should be pointed out of commercially available functional fluorine derivatives [1]. The creating of perspective semi-products, allowing producing different derivatives with polyfluoroalkyl fragment and new fluorine materials on their basis, is an urgent problem, which synthetic chemistry of fluoroorganic compounds is facing.

At every stage of technical progress the role and tendency of fundamental researches, especially the ones regarding new class organic compounds, is to a great extent initiated by society needs in new materials, which can't exist without creating fundamentally new materials possessing higher consumer properties and materials, which can work in more severe conditions. The fluorine compounds exactly meet such requirements and they can play an essential part for intensification and simplification of metals production without great reorganization of productions, which already exist. Fluorine chemistry is a strong independent scientific and technical direction of organic chemistry regarding range and level of scientific achievements and scale of their production implementation. The proper placing of priorities and selection of key base semi-products as a base for production of new materials, which are able to solve principal metal production tasks, are the most important goals. The main reserve of successful future company work is to apply achievements and projects of scientists well and to keep with up-to-date demands.
In this review the most of attention is paid to synthesis and practical application of perfluorinated carboxylic acids and semi-products on their base. Perfluorocarboxylic acids are exceptionally important multilateral semi-products for synthesis of different fluorine containing materials. On polyfluorinated carboxylic acids base different salts are obtained, these salts are used:

- As foaming and fire-fighting agents, as foam stabilizers for production of polyurethane foam, for obtaining of cationic, anionic and non-ionic fluorinated surfactants

- In electrometallurgy and electroplating for metals electrolytic refining

- For creation of effective detergents

- For making materials water and oil- repellent, that is used in different fields of textile, paper and tanning industries. For example, the modification of glyceryl methacrylate using perfluoropolyether derivatives allows to increase polymerization activity and decreasing of solutions surface tension

- As anti-corrosion and insulating metal coatings

- For creating new types of extractive solvent and modifying agent

- High temperature lubricants and coatings of moving details, as wear preventive additives for lubricating oils. The wear of motor oils at introduction only 0.2-2% of additives is 2/3-1/2 of corresponding value for oil, which doesn't contain the additive.

The industrial perfluorinated carboxylic acids obtaining method is based on electrochemical fluorination of carboxylic acids and their derivatives in anhydrous hydrogen fluoride using nickel electrodes [2,3]. Along with that the approaches, where the key stage is the oxidization of different fluorine-containing organic compounds both unsaturated and saturated are developed. In the present review you will find only separate examples of such reactions, at that the main attention was paid to oxidization of perfluorolefines and their derivatives. At the same time it was not an aim to give a full and comprehensive review of perfluorinated organic compounds chemistry, but there had been made an attempt to analyze the main tendencies in development of perfluorinated carboxylic acids synthesis methods for the purpose of revealing new approaches for their obtaining, for showing the opportunity to use perfluoroolefines and perfluoroalkyliodides as initial species for production of such classes compounds.