ES251349A1 - 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
ES251349A1
ES251349A1 ES0251349A ES251349A ES251349A1 ES 251349 A1 ES251349 A1 ES 251349A1 ES 0251349 A ES0251349 A ES 0251349A ES 251349 A ES251349 A ES 251349A ES 251349 A1 ES251349 A1 ES 251349A1
Authority
ES
Spain
Prior art keywords
chloride
electrolysis
products
membered rings
butyryl
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
ES0251349A
Other languages
Spanish (es)
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 AG
Original Assignee
SALINE LUDWIGSHALLE AG
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 AG filed Critical SALINE LUDWIGSHALLE AG
Publication of ES251349A1 publication Critical patent/ES251349A1/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

Abstract

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.
ES0251349A 1958-08-21 1959-08-08 Method of producing organic cyclic perfluoroethers having 5 or 6-membered rings Expired ES251349A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES251349A1 true ES251349A1 (en) 1960-01-16

Family

ID=6798530

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0251349A Expired ES251349A1 (en) 1958-08-21 1959-08-08 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)

Families Citing this family (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
KR20230078698A (en) 2012-07-10 2023-06-02 더 리젠츠 오브 더 유니버시티 오브 캘리포니아 Methods of inducing anesthesia

Also Published As

Publication number Publication date
GB862538A (en) 1961-03-15
FR1233841A (en) 1960-10-12

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