GB1082127A - Preparation of perfluoroolefins - Google Patents

Preparation of perfluoroolefins

Info

Publication number
GB1082127A
GB1082127A GB1499265A GB1499265A GB1082127A GB 1082127 A GB1082127 A GB 1082127A GB 1499265 A GB1499265 A GB 1499265A GB 1499265 A GB1499265 A GB 1499265A GB 1082127 A GB1082127 A GB 1082127A
Authority
GB
United Kingdom
Prior art keywords
oligomers
perfluoroolefins
tetrafluoroethylene
fluorides
compounds
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
GB1499265A
Inventor
Harold Crosbie Fielding
Alfred John Rudge
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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
Priority to NL132821D priority Critical patent/NL132821C/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1499265A priority patent/GB1082127A/en
Priority to NO16227266A priority patent/NO116909B/no
Priority to IL2546066A priority patent/IL25460A/en
Priority to NL6604357A priority patent/NL6604357A/xx
Priority to DK175666A priority patent/DK119402B/en
Priority to SE452266A priority patent/SE345439B/xx
Priority to CH495966A priority patent/CH529704A/en
Priority to ES0325244A priority patent/ES325244A1/en
Priority to DE19661568829 priority patent/DE1568829A1/en
Priority to BE679337A priority patent/BE679337A/xx
Priority to FR57087A priority patent/FR1475360A/en
Publication of GB1082127A publication Critical patent/GB1082127A/en
Priority to DE2009967A priority patent/DE2009967C3/en
Priority to NL7003038A priority patent/NL7003038A/xx
Priority to US05/571,770 priority patent/US4016217A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/272—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions
    • C07C17/278—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of only halogenated hydrocarbons
    • C07C17/281—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of only halogenated hydrocarbons of only one compound

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Tires In General (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention comprises branched, internally unsaturated perfluoroolefins that are oligomers of tetrafluoroethylene having the empirical formula (C2F4)n where n is an integer of at leas 4. The compounds are prepared by contacting tetrafluoroethylene under anhydrous conditions with at least one fluoride source selected from fluorides of K, Rb, Cs and quaternary ammonium radicals, acid fluorides of K, Rb and Cs, and fluorosalts of K, Rb and Cs that are sources of fluoride ions. Examples describe compounds wherein n is 4, 5, 6 and 7, perfluorobutenes being formed as a by-product in Example 18. The oligomers may be oxidized by KMnO4 in acetone to give CF3H and CF3CF2COOH.
GB1499265A 1965-04-08 1965-04-08 Preparation of perfluoroolefins Expired GB1082127A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
NL132821D NL132821C (en) 1965-04-08
GB1499265A GB1082127A (en) 1965-04-08 1965-04-08 Preparation of perfluoroolefins
NO16227266A NO116909B (en) 1965-04-08 1966-03-23
IL2546066A IL25460A (en) 1965-04-08 1966-03-25 Preparation of perfluoroolefins
NL6604357A NL6604357A (en) 1965-04-08 1966-04-01
DK175666A DK119402B (en) 1965-04-08 1966-04-04 PROCEDURE FOR PREPARING BRANCHED TETRAFLUOROTHEHYLENIGOMERS
SE452266A SE345439B (en) 1965-04-08 1966-04-04
CH495966A CH529704A (en) 1965-04-08 1966-04-05 Branched internally unsaturated perfluoro-olefins by
ES0325244A ES325244A1 (en) 1965-04-08 1966-04-06 Procedure for elaborating tetrafluorethylene oligomers. (Machine-translation by Google Translate, not legally binding)
DE19661568829 DE1568829A1 (en) 1965-04-08 1966-04-07 Process for the production of branched internally unsaturated perfluoroolefins
BE679337A BE679337A (en) 1965-04-08 1966-04-08
FR57087A FR1475360A (en) 1965-04-08 1966-04-08 Manufacturing process for perfluoroolefins
DE2009967A DE2009967C3 (en) 1965-04-08 1970-03-03 Process for the preparation of tetrafluoroethylene oligomers
NL7003038A NL7003038A (en) 1965-04-08 1970-03-03
US05/571,770 US4016217A (en) 1965-04-08 1975-04-25 Preparation of perfluoroolefines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1499265A GB1082127A (en) 1965-04-08 1965-04-08 Preparation of perfluoroolefins

Publications (1)

Publication Number Publication Date
GB1082127A true GB1082127A (en) 1967-09-06

Family

ID=10051163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1499265A Expired GB1082127A (en) 1965-04-08 1965-04-08 Preparation of perfluoroolefins

Country Status (10)

Country Link
BE (1) BE679337A (en)
CH (1) CH529704A (en)
DE (1) DE1568829A1 (en)
DK (1) DK119402B (en)
ES (1) ES325244A1 (en)
GB (1) GB1082127A (en)
IL (1) IL25460A (en)
NL (2) NL6604357A (en)
NO (1) NO116909B (en)
SE (1) SE345439B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549716A (en) * 1968-01-11 1970-12-22 Ici Ltd Preparation of perfluoroolefins
US3758618A (en) * 1969-03-03 1973-09-11 Ici Ltd Production of tetrafluoroethylene oligomers
US5928557A (en) * 1992-04-09 1999-07-27 Minnesota Mining And Manufacturing Company Lubricants for compressor fluids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549716A (en) * 1968-01-11 1970-12-22 Ici Ltd Preparation of perfluoroolefins
US3758618A (en) * 1969-03-03 1973-09-11 Ici Ltd Production of tetrafluoroethylene oligomers
US5928557A (en) * 1992-04-09 1999-07-27 Minnesota Mining And Manufacturing Company Lubricants for compressor fluids

Also Published As

Publication number Publication date
SE345439B (en) 1972-05-29
NO116909B (en) 1969-06-09
DE1568829A1 (en) 1970-04-02
NL132821C (en)
DK119402B (en) 1970-12-28
CH529704A (en) 1972-10-31
NL6604357A (en) 1966-10-10
BE679337A (en) 1966-10-10
IL25460A (en) 1970-02-19
ES325244A1 (en) 1967-01-01

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