GB858671A - Fluorocarbon acid and derivatives - Google Patents

Fluorocarbon acid and derivatives

Info

Publication number
GB858671A
GB858671A GB12753/57A GB1275357A GB858671A GB 858671 A GB858671 A GB 858671A GB 12753/57 A GB12753/57 A GB 12753/57A GB 1275357 A GB1275357 A GB 1275357A GB 858671 A GB858671 A GB 858671A
Authority
GB
United Kingdom
Prior art keywords
acid
prepared
oxydipropionyl
fluoride
salt
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB12753/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB858671A publication Critical patent/GB858671A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/235—Saturated compounds containing more than one carboxyl group
    • C07C59/305—Saturated compounds containing more than one carboxyl group containing ether groups, groups, groups, or groups
    • C07C59/315—Saturated compounds containing more than one carboxyl group containing ether groups, groups, groups, or groups containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/125—Saturated compounds having only one carboxyl group and containing ether groups, groups, groups, or groups
    • C07C59/135—Saturated compounds having only one carboxyl group and containing ether groups, groups, groups, or groups containing halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention comprises perfluoro-oxydipropionic acid O(CF2CF2COOH)2 and its acid halides, metal and ammonium salts and alkyl esters. The acid may be prepared by electrolytically fluorinating an oxydipropionyl halide with liquid hydrogen fluoride in a nickel anode cell to give perfluoro-oxydipropionyl fluoride and hydrolysing this to the acid. In an example perfluoro-oxydipropionyl fluoride is obtained electrolytically from oxydipropionyl fluoride, the acid is obtained by adding a slurry of calcium oxide and acidifying the resulting calcium salt with sulphuric acid. An alternative work-up involves the isolation of a sodium salt which is acidified as before. The silver salt is prepared using silver oxide and the carboxylate groups are then replaced by iodine to give a compound O(CF2CF2I)2. The mercury salt is prepared using mercuric oxide, the ethyl ester is prepared using ethanol and the methyl ester is prepared from the sodium salt using methyl-p-toluene sulphonate. Mono decarboxylation to give omega-hydroperfluoro-ethoxypropionic acid by heating the acid with piperidine is also described. A method for the preparation of the acid chloride, bromide and iodide is also mentioned. Specifications 686,678 and 735,730 are referred to.
GB12753/57A 1956-04-23 1957-04-18 Fluorocarbon acid and derivatives Expired GB858671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US858671XA 1956-04-23 1956-04-23

Publications (1)

Publication Number Publication Date
GB858671A true GB858671A (en) 1961-01-11

Family

ID=22194488

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12753/57A Expired GB858671A (en) 1956-04-23 1957-04-18 Fluorocarbon acid and derivatives

Country Status (1)

Country Link
GB (1) GB858671A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6753380B2 (en) 2001-03-09 2004-06-22 3M Innovative Properties Company Water-and oil-repellency imparting ester oligomers comprising perfluoroalkyl moieties
US6803109B2 (en) 2001-03-09 2004-10-12 3M Innovative Properties Company Water-and oil-repellency imparting urethane oligomers comprising perfluoroalkyl moieties
US7301052B2 (en) 2003-02-21 2007-11-27 Asahi Glass Company, Linited Process for producing perfluorodiacyl fluorinated compounds

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6753380B2 (en) 2001-03-09 2004-06-22 3M Innovative Properties Company Water-and oil-repellency imparting ester oligomers comprising perfluoroalkyl moieties
US6803109B2 (en) 2001-03-09 2004-10-12 3M Innovative Properties Company Water-and oil-repellency imparting urethane oligomers comprising perfluoroalkyl moieties
US7301052B2 (en) 2003-02-21 2007-11-27 Asahi Glass Company, Linited Process for producing perfluorodiacyl fluorinated compounds
US7501540B2 (en) 2003-02-21 2009-03-10 Asahi Glass Company, Limited Process for producing perfluorodiacyl fluorinated compounds

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