GB9221743D0 - Production of partially fluorinated ethers - Google Patents

Production of partially fluorinated ethers

Info

Publication number
GB9221743D0
GB9221743D0 GB929221743A GB9221743A GB9221743D0 GB 9221743 D0 GB9221743 D0 GB 9221743D0 GB 929221743 A GB929221743 A GB 929221743A GB 9221743 A GB9221743 A GB 9221743A GB 9221743 D0 GB9221743 D0 GB 9221743D0
Authority
GB
United Kingdom
Prior art keywords
partially fluorinated
fluoroalkyl group
group
fluorinated ether
production
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.)
Pending
Application number
GB929221743A
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
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB929221743A priority Critical patent/GB9221743D0/en
Publication of GB9221743D0 publication Critical patent/GB9221743D0/en
Priority to PCT/GB1993/002035 priority patent/WO1994008929A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/02—Ethers
    • C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
    • C07C43/04—Saturated ethers
    • C07C43/12—Saturated ethers containing halogen
    • C07C43/123—Saturated ethers containing halogen both carbon chains are substituted by halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/22—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of halogens; by substitution of halogen atoms by other halogen atoms

Landscapes

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

Abstract

A process for the fluorination of a partially fluorinated ether having the formula R-O-CH2-R<1> wherein R is a fluoroalkyl group having from 1 to 6 carbon atoms and R<1> is hydrogen, fluorine or a fluoroalkyl group having from 1 to 6 carbon atoms, provided that where R<1> is a fluoroalkyl group, R is not a trifluoromethyl group or a fluoroalkyl group having a difluoromethylene group at the alpha -position relative to the oxygen atom, which comprises contacting the partially fluorinated ether with a transition metal fluorinating agent, especially cobalt trifluoride. 1-difluoromethoxy-1,2,2,2-tetrafluoroethane may be produced where the fluorinated ether has the formula CF3-CHR-O-CH2R where each R is independently fluorine or hydrogen.
GB929221743A 1992-10-16 1992-10-16 Production of partially fluorinated ethers Pending GB9221743D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB929221743A GB9221743D0 (en) 1992-10-16 1992-10-16 Production of partially fluorinated ethers
PCT/GB1993/002035 WO1994008929A1 (en) 1992-10-16 1993-09-30 Production of partially fluorinated ethers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929221743A GB9221743D0 (en) 1992-10-16 1992-10-16 Production of partially fluorinated ethers

Publications (1)

Publication Number Publication Date
GB9221743D0 true GB9221743D0 (en) 1992-12-02

Family

ID=10723552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB929221743A Pending GB9221743D0 (en) 1992-10-16 1992-10-16 Production of partially fluorinated ethers

Country Status (2)

Country Link
GB (1) GB9221743D0 (en)
WO (1) WO1994008929A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5741950A (en) * 1996-12-16 1998-04-21 Minnesota Mining And Manufacturing Company Method of preparing nonafluoroisobutyl methyl ether
US6800786B1 (en) 2002-09-25 2004-10-05 Baxter International, Inc. Preparation of desflurane

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8301506D0 (en) * 1983-01-20 1983-02-23 Electricity Council Fluorinated ethers
GB9023370D0 (en) * 1990-10-26 1990-12-05 Rhone Poulenc Chemicals Synthesis of fluorinated substituted ethanes

Also Published As

Publication number Publication date
WO1994008929A1 (en) 1994-04-28

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