- Method for preparing fluorine-containing ether
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The invention relates to a 'method for preparing fluorine-containing ether', and belongs to the field of chemical synthesis. The method comprises the steps that under a nitrile solvent condition, carbonyl fluoride, trifluoroacetyl fluoride, pentafluoropropionyl fluoride, heptafluoro-n-butyryl fluoride, heptafluoro-iso-butyryl fluoride and other acyl fluorides are taken as raw materials to have anaddition reaction with metal fluorides to obtain perfluoroalkoxide, then under water catalysis, the perfluoroalkoxide and a low-toxic or even non-toxic harmless alkylating agent are subjected to an alkylation reaction to obtain the fluorine-containing ether. The method for preparing the fluorine-containing ether has the advantages that not only is the reaction condition mild, the yield of the fluorine-containing ether is high, but also the low-toxic or even non-toxic harmless alkylating agent is taken as a safe alkylation agent, the process is safe and reliable, and effective separation can beperformed by an ordinary distillation means in the industry.
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Paragraph 0086-0087
(2019/07/29)
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- Preparation method of methyl perfluorobutyl ether
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The invention discloses a preparation method of methyl perfluorobutyl ether. The preparation method comprises the steps of introducing fluorine-nitrogen mixed gas into a mixture of heptafluoroisobutyl methyl ether and a solvent to react at (-50)-(10) DEG C, stopping the introduction of the fluorine-nitrogen mixed gas when the molar ratio of fluorine gas to heptafluoroisobutyl methyl ether is (0.5-1) to 1, continuing to react for 5-20 minutes, heating to room temperature, removing tail gas, and rectifying reaction liquid, so as to obtain a methyl perfluorobutyl ether product. The preparation method has the advantages of simple process, high yield and low cost.
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Paragraph 0028-0039
(2018/03/28)
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- Photolysis of perfluoropropylene-methanol mixture in vacuum ultraviolet
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The products of reaction of C3F6 with CH 3OH, initiated by vacuum ultraviolet, were determined. The kinetics scheme of the process was proposed. The parameters of the kinetic processes were calculated. The feasibility of p
- Fokanov,Pavlov,Semenov,Maksimov,Morozov
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p. 1275 - 1279
(2007/10/03)
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