ATE427T1 - PROCESS FOR THE PREPARATION OF TETRONIC ACID METHYL ESTER. - Google Patents
PROCESS FOR THE PREPARATION OF TETRONIC ACID METHYL ESTER.Info
- Publication number
- ATE427T1 ATE427T1 AT79103978T AT79103978T ATE427T1 AT E427 T1 ATE427 T1 AT E427T1 AT 79103978 T AT79103978 T AT 79103978T AT 79103978 T AT79103978 T AT 79103978T AT E427 T1 ATE427 T1 AT E427T1
- Authority
- AT
- Austria
- Prior art keywords
- preparation
- methyl ester
- acid methyl
- tetronic acid
- tetronic
- Prior art date
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1. Process for preparing methyl tetronate, characterized in that a lower alkyl 4-bromo-3-methoxybut-2-encarboxylate is heated in an organic solvent with a Lewis acid as catalyst.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2845037A DE2845037C2 (en) | 1978-10-16 | 1978-10-16 | Process for the production of tetronic acid methyl ester |
EP79103978A EP0010288B1 (en) | 1978-10-16 | 1979-10-15 | Process for preparing a tetronic acid methyl ester |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE427T1 true ATE427T1 (en) | 1981-12-15 |
Family
ID=6052323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT79103978T ATE427T1 (en) | 1978-10-16 | 1979-10-15 | PROCESS FOR THE PREPARATION OF TETRONIC ACID METHYL ESTER. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0010288B1 (en) |
JP (1) | JPS5589275A (en) |
AT (1) | ATE427T1 (en) |
DE (1) | DE2845037C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59006113D1 (en) * | 1989-07-20 | 1994-07-21 | Lonza Ag | Process for the preparation of tetronic acid alkyl esters. |
AU666729B2 (en) * | 1992-06-11 | 1996-02-22 | Lonza Ltd | Process for preparing tetronic acid alkyl esters |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2116416A1 (en) * | 1971-04-03 | 1972-10-19 | Merck Patent Gmbh, 6100 Darmstadt | Process for the preparation of 3,4-disubstituted "(5H) -furanones |
DE2154439C3 (en) * | 1971-11-02 | 1975-10-02 | H.F. & Ph. F. Reemtsma, 2000 Hamburg | Process for the preparation of substituted delta alpha, beta-butenolides by cyclization of 4-acyloxybutene-2 acid esters |
JPS52100463A (en) * | 1976-02-19 | 1977-08-23 | Sumitomo Chem Co Ltd | Gamma-lactone and method of preparing same |
DE2731483A1 (en) * | 1976-07-15 | 1978-01-19 | Ciba Geigy Ag | di:halovinyl substd. gamma-lactone cpds. - which are intermediates for pyrethroid pesticides and prepd. from a (1,1,1)-tri:halo-(3)-pentene-(2)-ol and ethyl ortho-acetate |
-
1978
- 1978-10-16 DE DE2845037A patent/DE2845037C2/en not_active Expired
-
1979
- 1979-10-15 EP EP79103978A patent/EP0010288B1/en not_active Expired
- 1979-10-15 JP JP13470779A patent/JPS5589275A/en active Pending
- 1979-10-15 AT AT79103978T patent/ATE427T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0010288B1 (en) | 1981-11-25 |
DE2845037B1 (en) | 1980-04-17 |
JPS5589275A (en) | 1980-07-05 |
EP0010288A1 (en) | 1980-04-30 |
DE2845037C2 (en) | 1980-12-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DD139254A5 (en) | PROCESS FOR PREPARING 3- (2,2-DIHALOGENAETHENYL) -2,2-DIMETHYLCYCLOPROPANIC ACID ACID (1,1'-BIPHENYL) -3-YLMETHYL ESTERS | |
ATA472779A (en) | METHOD FOR PRODUCING 7- (SUBSTITUTED) AMINO-3-SUBSTITUTED-THIOMETHYL-DELTA3-CARBONIC ACIDS | |
AT364461B (en) | METHOD FOR PRODUCING PSEUDOMONIC ACID | |
ATA607479A (en) | METHOD FOR PRODUCING 3 '', 4 '' DIACYLTYLOSIN DERIVATIVES | |
PT69323A (en) | PROCESS FOR PREPARING WATER-PLASTIC DISPERSION BASED ON VINYL POLYMERS | |
ATE427T1 (en) | PROCESS FOR THE PREPARATION OF TETRONIC ACID METHYL ESTER. | |
ATA110179A (en) | METHOD FOR PRODUCING LAEVO-N- (1-AETHYL-2-PYRROLIDINO-METHYL) -2'-METHOXY-5'-SULFAMOYL -BEZAMIDE | |
ATA375179A (en) | METHOD FOR PRODUCING ARYL ACETIC DERIVATIVES | |
DD134760A1 (en) | PROCESS FOR PRODUCING MOERTEL | |
DD129448A1 (en) | PROCESS FOR THE PREPARATION OF THIOPHENE 2,5-DICARBONE ACID | |
DD135201A5 (en) | PROCESS FOR PREPARING MALEINE ACID ANHYDRIDE | |
JPS54115339A (en) | Manufacture of 22arylacrylic acid alkyl | |
AT370717B (en) | METHOD FOR PRODUCING DI-N-PROPYL ACETIC ACID | |
AT349443B (en) | PROCESS FOR THE PREPARATION OF 2- (2 ', 2'-DIHALOGENVINYL) -CYCLOPROPANECARBONIC ACIDS | |
ATA61776A (en) | PROCESS FOR THE PREPARATION OF NEW 2- (2'-NITROACETYL) -BENZO ACID ESTERS | |
DD136500A1 (en) | PROCESS FOR THE PREPARATION OF 2,4-DIARYL-5-AMINO-SWEEPED BRACKET TO 2,3-D CORNER CLAUSE TO THIENOPYRIMIDINES | |
ATA724679A (en) | METHOD FOR PRODUCING ARYL ACETIC ACIDS | |
DD134226A1 (en) | PROCESS FOR THE PREPARATION OF 3,4-DEMETHOXY-6-CORNER CLAUSE TO 4- (2-FUROYL) -1-PIPERAZINYL SQUARE BRACKET TO BENZONITRIL | |
DD138979A1 (en) | PROCESS FOR THE PREPARATION OF ACYLTHINE CARBON WITH ERGOLINE STRUCTURE | |
DD137103A1 (en) | PROCESS FOR PREPARING SUBSTITUTED 2-AMINO-5-ARYL-1.3.4-OXADIAZOLES | |
DD133226A1 (en) | PROCESS FOR PREPARING UNSATURATED CARBON ACIDS | |
ATA355878A (en) | METHOD FOR PRODUCING NEW SPIROCYCLIC BORONIC COMPOUNDS | |
DD136614A1 (en) | PROCESS FOR PREPARING 3- (ALPHA-PHENYLPROPYL) -4-HYDROXYCUMARIN | |
DD134873A1 (en) | PROCESS FOR PREPARING POLYOLEFINE GROWTH WITH CARBOXAMIDE-BASED GROUPS | |
AT370091B (en) | METHOD FOR PRODUCING NEW 2-CYANO-2CYANOMETHYL-OXIMINO ACETIC DERIVATIVES |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |