CH503722A - Process for the production of tetronic acid - Google Patents

Process for the production of tetronic acid

Info

Publication number
CH503722A
CH503722A CH807669A CH807669A CH503722A CH 503722 A CH503722 A CH 503722A CH 807669 A CH807669 A CH 807669A CH 807669 A CH807669 A CH 807669A CH 503722 A CH503722 A CH 503722A
Authority
CH
Switzerland
Prior art keywords
production
tetronic acid
tetronic
acid
Prior art date
Application number
CH807669A
Other languages
German (de)
Inventor
Boosen Karl-Josef Dr Dipl-Chem
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 CH807669A priority Critical patent/CH503722A/en
Priority to DE2025570A priority patent/DE2025570C3/en
Priority to GB1256847D priority patent/GB1256847A/en
Priority to NL7007741A priority patent/NL7007741A/xx
Priority to FR7019529A priority patent/FR2048922A5/fr
Publication of CH503722A publication Critical patent/CH503722A/en
Priority to US44102874 priority patent/USRE28242E/en

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
CH807669A 1969-05-28 1969-05-28 Process for the production of tetronic acid CH503722A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH807669A CH503722A (en) 1969-05-28 1969-05-28 Process for the production of tetronic acid
DE2025570A DE2025570C3 (en) 1969-05-28 1970-05-26 Process for the production of tetronic acid
GB1256847D GB1256847A (en) 1969-05-28 1970-05-27
NL7007741A NL7007741A (en) 1969-05-28 1970-05-28
FR7019529A FR2048922A5 (en) 1969-05-28 1970-05-28
US44102874 USRE28242E (en) 1969-05-28 1974-02-07 Method for manufacturing tetronic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH807669A CH503722A (en) 1969-05-28 1969-05-28 Process for the production of tetronic acid

Publications (1)

Publication Number Publication Date
CH503722A true CH503722A (en) 1971-02-28

Family

ID=4334771

Family Applications (1)

Application Number Title Priority Date Filing Date
CH807669A CH503722A (en) 1969-05-28 1969-05-28 Process for the production of tetronic acid

Country Status (6)

Country Link
US (1) USRE28242E (en)
CH (1) CH503722A (en)
DE (1) DE2025570C3 (en)
FR (1) FR2048922A5 (en)
GB (1) GB1256847A (en)
NL (1) NL7007741A (en)

Cited By (8)

* 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
US5008402A (en) * 1988-09-06 1991-04-16 Lonza Ltd. Process for production of 5-alkyl tetramic acids
EP2230237A1 (en) 2009-03-16 2010-09-22 Bayer CropScience AG New method for producing enaminocarbonyl compounds
EP2230236A1 (en) 2009-03-16 2010-09-22 Bayer CropScience AG New method for producing enaminocarbonyl compounds
EP2253610A1 (en) 2007-09-18 2010-11-24 Bayer CropScience AG Method for manufacturing 4-aminobut-2-enolids
WO2011020564A1 (en) 2009-08-18 2011-02-24 Bayer Cropscience Ag Novel method for producing 4-aminobut-2-enolides
US8273904B2 (en) 2007-09-18 2012-09-25 Bayer Cropscience Ag Method for preparing 4-aminobut-2-enolides
US8344151B2 (en) 2009-12-23 2013-01-01 Bayer Cropscience Ag Process for the preparation of 4-aminobut-2-enolides starting from 4-alkoxyfuran-2(5H)-one or 4-arylalkoxyfuran-2(5H)-one

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310463A (en) 1979-02-22 1982-01-12 Chevron Research 3-(N-Arylamino)-gamma-butyrolactones, butyrolactams and thiobutyrolactones are intermediates for compounds having fungicidal activity
DE59006113D1 (en) * 1989-07-20 1994-07-21 Lonza Ag Process for the preparation of tetronic acid alkyl esters.

Cited By (14)

* 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
US5008402A (en) * 1988-09-06 1991-04-16 Lonza Ltd. Process for production of 5-alkyl tetramic acids
EP2253610A1 (en) 2007-09-18 2010-11-24 Bayer CropScience AG Method for manufacturing 4-aminobut-2-enolids
US9550745B2 (en) 2007-09-18 2017-01-24 Bayer Cropscience Ag Method for preparing 4-aminobut-2-enolides
US8487112B2 (en) 2007-09-18 2013-07-16 Bayer Cropscience Ag Method for producing 4-aminobut-2-enolides
US8273904B2 (en) 2007-09-18 2012-09-25 Bayer Cropscience Ag Method for preparing 4-aminobut-2-enolides
EP2230236A1 (en) 2009-03-16 2010-09-22 Bayer CropScience AG New method for producing enaminocarbonyl compounds
WO2010105779A1 (en) 2009-03-16 2010-09-23 Bayer Cropscience Ag Novel method for producing enaminocarbonyl compounds
WO2010105772A1 (en) 2009-03-16 2010-09-23 Bayer Cropscience Ag Novel method for producing enaminocarbonyl compounds
US8680285B2 (en) 2009-03-16 2014-03-25 Bayer Cropscience Ag Method for producing enaminocarbonyl compounds
US8680286B2 (en) 2009-03-16 2014-03-25 Bayer Cropscience Ag Method for producing enaminocarbonyl compounds
EP2230237A1 (en) 2009-03-16 2010-09-22 Bayer CropScience AG New method for producing enaminocarbonyl compounds
WO2011020564A1 (en) 2009-08-18 2011-02-24 Bayer Cropscience Ag Novel method for producing 4-aminobut-2-enolides
US8344151B2 (en) 2009-12-23 2013-01-01 Bayer Cropscience Ag Process for the preparation of 4-aminobut-2-enolides starting from 4-alkoxyfuran-2(5H)-one or 4-arylalkoxyfuran-2(5H)-one

Also Published As

Publication number Publication date
FR2048922A5 (en) 1971-03-19
USRE28242E (en) 1974-11-12
GB1256847A (en) 1971-12-15
DE2025570C3 (en) 1980-03-06
DE2025570B2 (en) 1979-07-05
NL7007741A (en) 1970-12-01
DE2025570A1 (en) 1970-12-03

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Legal Events

Date Code Title Description
PL Patent ceased