GB862538A - Method of producing organic cyclic perfluoroethers having 5 or 6-membered rings - Google Patents

Method of producing organic cyclic perfluoroethers having 5 or 6-membered rings

Info

Publication number
GB862538A
GB862538A GB2775359A GB2775359A GB862538A GB 862538 A GB862538 A GB 862538A GB 2775359 A GB2775359 A GB 2775359A GB 2775359 A GB2775359 A GB 2775359A GB 862538 A GB862538 A GB 862538A
Authority
GB
United Kingdom
Prior art keywords
chloride
electrolysis
products
organic cyclic
membered rings
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
GB2775359A
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.)
Saline Ludwigshalle A-G
Original Assignee
Saline Ludwigshalle A-G
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 Saline Ludwigshalle A-G filed Critical Saline Ludwigshalle A-G
Publication of GB862538A publication Critical patent/GB862538A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D307/18—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Furan Compounds (AREA)

Abstract

862,538. Organic cyclic perfluoro ethers. SALINE LUDWIGSHALLE A.G. Aug. 13, 1959 [Aug. 21, 1958], No. 27753/59. Class 41. Organic cyclic per-fluoro ethers of 5- or 6- membered rings are made by electrolysis of an aliphatic carboxylic acid halide mixed with anhydrous H.F. e.g. butyryl or capronyl chloride. The electrolysis is effected at low temperatures and the products condensed fractionally to remove HF, and isolate the products. In examples, butyryl chloride and a little sodium fluoride is dissolved in anhydrous HF and submitted to electrolysis at - 20‹ C. at 5.5 to 6 V., further butyryl chloride being added as the reaction proceeds. The products are condensed at - 70 ‹ C. and surplus HF returned to the cell. About 31% of the acid chloride is converted to perfluorotetrahydrofurane. The production of perfluorostitia hydro pyranes from branched chain acid chlorides is also referred to.
GB2775359A 1958-08-21 1959-08-13 Method of producing organic cyclic perfluoroethers having 5 or 6-membered rings Expired GB862538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0059510 1958-08-21

Publications (1)

Publication Number Publication Date
GB862538A true GB862538A (en) 1961-03-15

Family

ID=6798530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2775359A Expired GB862538A (en) 1958-08-21 1959-08-13 Method of producing organic cyclic perfluoroethers having 5 or 6-membered rings

Country Status (3)

Country Link
ES (1) ES251349A1 (en)
FR (1) FR1233841A (en)
GB (1) GB862538A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133794A (en) * 1983-01-20 1984-08-01 Electricity Council Fluorinated ethers
EP4032533A1 (en) 2012-07-10 2022-07-27 The Regents of The University of California Methods of inducing anesthesia

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133794A (en) * 1983-01-20 1984-08-01 Electricity Council Fluorinated ethers
EP4032533A1 (en) 2012-07-10 2022-07-27 The Regents of The University of California Methods of inducing anesthesia

Also Published As

Publication number Publication date
FR1233841A (en) 1960-10-12
ES251349A1 (en) 1960-01-16

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