GB787919A - The production of cyclohexene fluorocarbons - Google Patents

The production of cyclohexene fluorocarbons

Info

Publication number
GB787919A
GB787919A GB1586856A GB1586856A GB787919A GB 787919 A GB787919 A GB 787919A GB 1586856 A GB1586856 A GB 1586856A GB 1586856 A GB1586856 A GB 1586856A GB 787919 A GB787919 A GB 787919A
Authority
GB
United Kingdom
Prior art keywords
acids
production
acid
carboxylic acid
fluorocarbons
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
GB1586856A
Inventor
Thomas S Reid
George H Smith
Wilbur H Pearlson
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
Priority to US239022A priority Critical patent/US2746997A/en
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Priority to DEM30563A priority patent/DE1030336B/en
Priority to GB1586856A priority patent/GB787919A/en
Publication of GB787919A publication Critical patent/GB787919A/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
    • C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • C07C17/363—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms by elimination of carboxyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises a process for the production of perfluorocyclohexene or a perfluoromethylcyclohexene having one or more trifluoromethyl substituents, by pyrolysing perfluorocyclohexylcarboxylic acid or a perfluoromethyl cyclohexyl carboxylic acid having at least one trifluoromethyl group and at least one beta-fluorine atom at about 550 DEG C. and isolating the fluorocarbon produced. Elimination of HF as well as decarboxylation takes place according to the following equation in the case of perfluorocyclohexyl carboxylic acid itself: <FORM:0787919/IV (b)/1> An example is given in which the above acid is heated at 550 DEG C. in a carbon-lined steel tube to give the c-C6F10. Other acids which may be used include those having one or two CF3 groups and 2 : 2 : 6-triperfluoromethyl cyclohexyl carboxylic acids (perfluoronaphthenic acids), obtainable by the process of Specification 686,678.
GB1586856A 1951-07-27 1956-05-22 The production of cyclohexene fluorocarbons Expired GB787919A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US239022A US2746997A (en) 1951-07-27 1951-07-27 Production of cyclohexene fluorocarbons
DEM30563A DE1030336B (en) 1956-05-22 1956-05-22 Process for the preparation of perfluorocyclohexenes
GB1586856A GB787919A (en) 1956-05-22 1956-05-22 The production of cyclohexene fluorocarbons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1586856A GB787919A (en) 1956-05-22 1956-05-22 The production of cyclohexene fluorocarbons

Publications (1)

Publication Number Publication Date
GB787919A true GB787919A (en) 1957-12-18

Family

ID=10066986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1586856A Expired GB787919A (en) 1951-07-27 1956-05-22 The production of cyclohexene fluorocarbons

Country Status (1)

Country Link
GB (1) GB787919A (en)

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