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SU1840588A1 - Method for preparing perfluoropolyoxaethylene dicarboxylic acid difluoroanhydrides - Google Patents

Method for preparing perfluoropolyoxaethylene dicarboxylic acid difluoroanhydrides

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Publication number
SU1840588A1
SU1840588A1 SU3074833/04A SU3074833A SU1840588A1 SU 1840588 A1 SU1840588 A1 SU 1840588A1 SU 3074833/04 A SU3074833/04 A SU 3074833/04A SU 3074833 A SU3074833 A SU 3074833A SU 1840588 A1 SU1840588 A1 SU 1840588A1
Authority
SU
USSR - Soviet Union
Prior art keywords
perfluoropolyoxaethylene
difluoroanhydrides
dicarboxylic acid
preparing
fluoride
Prior art date
Application number
SU3074833/04A
Other languages
Russian (ru)
Inventor
Фарид Мубаракшевич Мухаметшин
Галина Ивановна Леконцева
Галактион Галактионович Коровушкин
Галина Ивановна Якурнова
Лев Соломонович Герман
Яков Моисеевич Виленчик
Михаил Иванович Ляпунов
Олег Михайлович Жирнов
Александр Николаевич Фирсов
Original Assignee
Федеральное государственное унитарное предприятие "Российский научный центр "Прикладная химия" Пермский филиал
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Федеральное государственное унитарное предприятие "Российский научный центр "Прикладная химия" Пермский филиал filed Critical Федеральное государственное унитарное предприятие "Российский научный центр "Прикладная химия" Пермский филиал
Priority to SU3074833/04A priority Critical patent/SU1840588A1/en
Application granted granted Critical
Publication of SU1840588A1 publication Critical patent/SU1840588A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

FIELD: organic chemistry, chemical technology.SUBSTANCE: invention relates to a method for synthesis of perfluoropolyoxaethylene dicarboxylic acid difluoroanhydrides of the general formula: FOC(CFOCF)COF wherein n = 1-10 in using tetrafluoroethylene oxide in the presence of catalyst in solvent at temperature (-15)-(-40)°C. In aim for simplifying the process tetrafluoroethylene oxide is added for interaction with fluorosulfonyloxydifluoroacetyl fluoride, and potassium fluoride or cesium fluoride is used a catalyst.EFFECT: improved method of synthesis.3 tbl, 2 ex
SU3074833/04A 1983-10-04 1983-10-04 Method for preparing perfluoropolyoxaethylene dicarboxylic acid difluoroanhydrides SU1840588A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU3074833/04A SU1840588A1 (en) 1983-10-04 1983-10-04 Method for preparing perfluoropolyoxaethylene dicarboxylic acid difluoroanhydrides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU3074833/04A SU1840588A1 (en) 1983-10-04 1983-10-04 Method for preparing perfluoropolyoxaethylene dicarboxylic acid difluoroanhydrides

Publications (1)

Publication Number Publication Date
SU1840588A1 true SU1840588A1 (en) 2007-08-27

Family

ID=60541918

Family Applications (1)

Application Number Title Priority Date Filing Date
SU3074833/04A SU1840588A1 (en) 1983-10-04 1983-10-04 Method for preparing perfluoropolyoxaethylene dicarboxylic acid difluoroanhydrides

Country Status (1)

Country Link
SU (1) SU1840588A1 (en)

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