DE1643387B1 - Verfahren zur Herstellung von Tetrahydrofuran-2,3,4,5-tetracarbonsaeure - Google Patents

Verfahren zur Herstellung von Tetrahydrofuran-2,3,4,5-tetracarbonsaeure

Info

Publication number
DE1643387B1
DE1643387B1 DE19671643387 DE1643387A DE1643387B1 DE 1643387 B1 DE1643387 B1 DE 1643387B1 DE 19671643387 DE19671643387 DE 19671643387 DE 1643387 A DE1643387 A DE 1643387A DE 1643387 B1 DE1643387 B1 DE 1643387B1
Authority
DE
Germany
Prior art keywords
acid
tetrahydrofuran
tetracarboxylic acid
endoxotetrahydrophthalic
preparation
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
DE19671643387
Other languages
German (de)
English (en)
Inventor
Karl Dr Peterlein
Heinz Dr Rempfer
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.)
Gelsenberg Benzin AG
Original Assignee
Gelsenberg Benzin 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 Gelsenberg Benzin AG filed Critical Gelsenberg Benzin AG
Publication of DE1643387B1 publication Critical patent/DE1643387B1/de
Pending 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
    • C07D307/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
DE19671643387 1967-07-07 1967-07-07 Verfahren zur Herstellung von Tetrahydrofuran-2,3,4,5-tetracarbonsaeure Pending DE1643387B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0050576 1967-07-07

Publications (1)

Publication Number Publication Date
DE1643387B1 true DE1643387B1 (de) 1971-10-14

Family

ID=7129411

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671643387 Pending DE1643387B1 (de) 1967-07-07 1967-07-07 Verfahren zur Herstellung von Tetrahydrofuran-2,3,4,5-tetracarbonsaeure

Country Status (8)

Country Link
US (1) US3534067A (enExample)
AT (1) AT273949B (enExample)
BE (1) BE717218A (enExample)
CH (1) CH489487A (enExample)
DE (1) DE1643387B1 (enExample)
FR (1) FR1570289A (enExample)
NL (1) NL6809506A (enExample)
SE (1) SE352887B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187238A (en) * 1989-10-16 1993-02-16 National Starch And Chemical Investment Holding Corporation Polyether polycarboxylate compositions useful as detergent builders
US5061396A (en) * 1989-10-16 1991-10-29 National Starch And Chemical Investment Holding Corporation Detergent compositions containing polyether polycarboxylates
US5087682A (en) * 1989-10-16 1992-02-11 National Starch And Chemical Investment Holding Corporation Polyether polycarboxylate compositions useful as detergent builders

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US3534067A (en) 1970-10-13
FR1570289A (enExample) 1969-06-06
CH489487A (de) 1970-04-30
BE717218A (enExample) 1968-12-02
NL6809506A (enExample) 1969-01-09
AT273949B (de) 1969-08-25
SE352887B (enExample) 1973-01-15

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977