Trifluoroiodomethane preparation method

A technology of trifluoroiodomethane and trifluoroacetate, applied in the directions of halogenated hydrocarbon preparation, chemical instruments and methods, chemical recovery, etc., can solve the problems of expensive raw materials, high price, large amount of reaction solvent, etc. The advantages are obvious, the production cost is reduced, and the process is feasible.

Active Publication Date: 2013-03-27
SINOCHEM LANTIAN +1
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Problems solved by technology

[0018] In addition, there are also reports on the method of preparing trifluoroiodomethane using trifluoromethylation reagents as raw materials, such as: using CF 3 TMS, CF 3 Br is used as a raw material to prepare trifluoroiodomethane. This preparation method is generally used in laboratory research, because the raw materials of trifluoromethylation reagents are often difficult to obtain and expensive.
In addition, tetrafluoroethylene and iodine pentafluoride are used as raw materials to prepare pentafluoroiodoethane, and the method report of trifluoroiodomethane by-product simultaneously, such as the preparation method mentioned in Chin

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Abstract

The invention provides a method for preparing trifluoroiodomethane through utilizing industrial waste trifluoroacetic acid and industrially recovered iodine. The method has the characteristics of low cost, simple operation, mild reaction, fast reaction speed, high yield, high selectivity, environmental protection and the like. The synthesized trifluoroiodomethane is an important fluorine-containing fine chemical engineering raw material, and can be used for producing fluorine-containing finishing agents, fluorine-containing surfactants and other fluorine-containing fine chemicals.

Description

technical field [0001] The invention relates to a method for preparing trifluoroiodomethane. [0002] Background technique [0003] Developing efficient, mild, and highly selective synthetic methods from cheap reagents as raw materials is one of the important challenges in organic synthetic chemistry. [0004] Perfluoroiodoalkane, commonly known as perfluoroalkyl iodide, is an important fluorine-containing fine chemical raw material and a key intermediate in the production of fluorine-containing finishing agents, fluorine-containing surfactants and other fluorine-containing fine chemicals. In addition, due to the particularity of its molecular structure, it can provide straight-chain perfluoroalkanes, and its corresponding products also have excellent high surface activity, high chemical stability, and hydrophobic and oil-repellent properties, so the downstream of perfluoroalkyl iodides Products, in light water fire extinguishing agent, magnetic recording material, hydroph...

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Application Information

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IPC IPC(8): C07C19/16C07C17/363
CPCY02P20/582
Inventor 姚汉清向绍基孔小林黄红英姚巍
Owner SINOCHEM LANTIAN
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