GB887691A - Aromatic fluorine compounds employed in the production of polymeric gums - Google Patents

Aromatic fluorine compounds employed in the production of polymeric gums

Info

Publication number
GB887691A
GB887691A GB462860A GB462860A GB887691A GB 887691 A GB887691 A GB 887691A GB 462860 A GB462860 A GB 462860A GB 462860 A GB462860 A GB 462860A GB 887691 A GB887691 A GB 887691A
Authority
GB
United Kingdom
Prior art keywords
pentafluorophenol
pyridine
production
fluorine compounds
compounds employed
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
GB462860A
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.)
National Polychemicals Inc
Original Assignee
National Polychemicals Inc
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 National Polychemicals Inc filed Critical National Polychemicals Inc
Publication of GB887691A publication Critical patent/GB887691A/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
    • C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
    • 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
    • C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
    • C07C17/2632—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions involving an organo-magnesium compound, e.g. Grignard synthesis
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C25/00—Compounds containing at least one halogen atom bound to a six-membered aromatic ring
    • C07C25/02—Monocyclic aromatic halogenated hydrocarbons
    • C07C25/13—Monocyclic aromatic halogenated hydrocarbons containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
    • C07C37/02—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/64—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring
    • C07C37/66—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring by conversion of hydroxy groups to O-metal groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/24—Halogenated derivatives
    • C07C39/26—Halogenated derivatives monocyclic monohydroxylic containing halogen bound to ring carbon atoms
    • C07C39/27—Halogenated derivatives monocyclic monohydroxylic containing halogen bound to ring carbon atoms all halogen atoms being bound to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/24—Halogenated derivatives
    • C07C39/44—Metal derivatives of an hydroxy group bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
    • C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols

Landscapes

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

Abstract

Pentafluorophenol is produced by heating hexafluorobenzene with solid or alcoholic potassium hydroxide in the presence of pyridine, or a mixture of pyridine and dioxane, and then acidifying the cooled reaction-mixture to liberate pentafluorophenol from its potassium salt. When alcoholic potassium hydroxide is used in the reaction, a large yield of tetrafluorodihydroxybenzene and small amounts of pentafluorophenetole and tetrafluorodiethoxybenzene are produced, in addition to pentafluorophenol. Examples 7 and 8 relate to the preparation of the sodium, ammonium and silver salts of pentafluorophenol. When heated at 200 DEG C.-350 DEG C., these salts give gums of the formula C6F5-(O-C6H4)y-OX where X=Na, Ag &c. and y is 10 to 15. Pentafluorophenylbenzoate is formed when pentafluorophenol is reacted with benzoyl chloride in pyridine. Example 6 describes the preparation of pentachlorotoluene by reacting hexafluorobenzene with methyllithium in ethereal solution.
GB462860A 1959-02-12 1960-02-10 Aromatic fluorine compounds employed in the production of polymeric gums Expired GB887691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79292459A 1959-02-12 1959-02-12

Publications (1)

Publication Number Publication Date
GB887691A true GB887691A (en) 1962-01-24

Family

ID=25158497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB462860A Expired GB887691A (en) 1959-02-12 1960-02-10 Aromatic fluorine compounds employed in the production of polymeric gums

Country Status (2)

Country Link
FR (1) FR1249579A (en)
GB (1) GB887691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221635A1 (en) * 1985-09-13 1987-05-13 Imperial Chemical Industries Plc Fluoro alcohols and insecticidal esters thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1907879C3 (en) * 1969-02-17 1978-11-02 Union Rheinische Braunkohlen Kraftstoff Ag, 5047 Wesseling Process for the preparation of alkyldihydroxybenzenes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221635A1 (en) * 1985-09-13 1987-05-13 Imperial Chemical Industries Plc Fluoro alcohols and insecticidal esters thereof

Also Published As

Publication number Publication date
FR1249579A (en) 1960-12-30

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