CH529128A - Verfahren zur Herstellung von Tetronsäure - Google Patents

Verfahren zur Herstellung von Tetronsäure

Info

Publication number
CH529128A
CH529128A CH1326470A CH1326470A CH529128A CH 529128 A CH529128 A CH 529128A CH 1326470 A CH1326470 A CH 1326470A CH 1326470 A CH1326470 A CH 1326470A CH 529128 A CH529128 A CH 529128A
Authority
CH
Switzerland
Prior art keywords
production
tetronic acid
tetronic
acid
Prior art date
Application number
CH1326470A
Other languages
English (en)
Inventor
Karl-Josef Dipl Chem Boosen
Original Assignee
Lonza 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 Lonza Ag filed Critical Lonza Ag
Priority to CH1326470A priority Critical patent/CH529128A/de
Priority to NL7112040A priority patent/NL7112040A/xx
Priority to GB4077171A priority patent/GB1313241A/en
Priority to DE19712143709 priority patent/DE2143709A1/de
Priority to FR7131756A priority patent/FR2107175A5/fr
Priority to US00177448A priority patent/US3824255A/en
Priority to IT52620/71A priority patent/IT954173B/it
Priority to JP6707671A priority patent/JPS558976B1/ja
Publication of CH529128A publication Critical patent/CH529128A/de

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
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three 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
    • C07D307/60—Two oxygen atoms, e.g. succinic anhydride
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH1326470A 1970-09-04 1970-09-04 Verfahren zur Herstellung von Tetronsäure CH529128A (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CH1326470A CH529128A (de) 1970-09-04 1970-09-04 Verfahren zur Herstellung von Tetronsäure
NL7112040A NL7112040A (de) 1970-09-04 1971-09-01
GB4077171A GB1313241A (en) 1970-09-04 1971-09-01 Process for the production of tetronic acid
DE19712143709 DE2143709A1 (de) 1970-09-04 1971-09-01
FR7131756A FR2107175A5 (de) 1970-09-04 1971-09-02
US00177448A US3824255A (en) 1970-09-04 1971-09-02 Process for the production of tetronic acid
IT52620/71A IT954173B (it) 1970-09-04 1971-09-02 Procedimento per la produzione di acido tetronico
JP6707671A JPS558976B1 (de) 1970-09-04 1971-09-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1326470A CH529128A (de) 1970-09-04 1970-09-04 Verfahren zur Herstellung von Tetronsäure

Publications (1)

Publication Number Publication Date
CH529128A true CH529128A (de) 1972-10-15

Family

ID=4390866

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1326470A CH529128A (de) 1970-09-04 1970-09-04 Verfahren zur Herstellung von Tetronsäure

Country Status (8)

Country Link
US (1) US3824255A (de)
JP (1) JPS558976B1 (de)
CH (1) CH529128A (de)
DE (1) DE2143709A1 (de)
FR (1) FR2107175A5 (de)
GB (1) GB1313241A (de)
IT (1) IT954173B (de)
NL (1) NL7112040A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414400A (en) 1981-06-17 1983-11-08 Lonza Ltd. Process for the production of tetronic acid
EP0153615A1 (de) * 1984-02-09 1985-09-04 Lonza Ag Verfahren zur Herstellung von Tetronsäure
US5008402A (en) * 1988-09-06 1991-04-16 Lonza Ltd. Process for production of 5-alkyl tetramic acids

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649294A5 (de) * 1981-06-17 1985-05-15 Lonza Ag Verfahren zur herstellung von tetronsaeure.
JPH04133226U (ja) * 1991-05-31 1992-12-11 京セラ株式会社 液晶表示素子

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414400A (en) 1981-06-17 1983-11-08 Lonza Ltd. Process for the production of tetronic acid
EP0153615A1 (de) * 1984-02-09 1985-09-04 Lonza Ag Verfahren zur Herstellung von Tetronsäure
US5008402A (en) * 1988-09-06 1991-04-16 Lonza Ltd. Process for production of 5-alkyl tetramic acids

Also Published As

Publication number Publication date
FR2107175A5 (de) 1972-05-05
DE2143709A1 (de) 1972-03-09
US3824255A (en) 1974-07-16
IT954173B (it) 1973-08-30
GB1313241A (en) 1973-04-11
JPS558976B1 (de) 1980-03-07
NL7112040A (de) 1972-03-07

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Legal Events

Date Code Title Description
PL Patent ceased