METHOD FOR PREPARING PERFLUORO-2-METHYL-3-OXAHEXANOYLPEROXIDE

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to preparing perfluoro-2-methyl-3-oxahexanoylperoxide that is used as an initiating agent in radical copolymerization of fluorinated olefins. Perfluoro-2-methyl-3-oxahexanoic acid fluoroanhydride is mixed with an perfluoropr...

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Main Authors LUK'JANOV V.V, PURETSKAJA E.R, BOROVNEV L.M, TISHINA V.V, LAZAREVA O.V, ZAKHAROV V.JU, KOCHETKOVA G.V, DEDOV A.S, KAPUSTIN I.M
Format Patent
LanguageEnglish
Russian
Published 10.10.2003
Edition7
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to preparing perfluoro-2-methyl-3-oxahexanoylperoxide that is used as an initiating agent in radical copolymerization of fluorinated olefins. Perfluoro-2-methyl-3-oxahexanoic acid fluoroanhydride is mixed with an perfluoropropylvinyl ester using as an organic solvent. Aqueous solutions of hydrogen peroxide and sodium hydroxide (preferably as 5-10%) are fed to mixture by separate currents simultaneously in cooling being preferably in the range of temperature from 0 to 5 C. The ratio of total volume of aqueous solutions to the mixture volume = (0.57-1.84) : 1 being the parent reagents are taken in the mole ratio hydrogen peroxide : sodium hydroxide : fluoroanhydride = (1.5- 2.5) : (2.0-2.5) : 1, respectively. Method provides simplifying isolation of the end substance, to improve its quality and to enhance safety and yield of product. EFFECT: improved preparing method. 5 cl, 2 tbl, 12 ex
Bibliography:Application Number: RU20020106168