IL105938A - Process for preparing tetronic acid alkyl esters - Google Patents

Process for preparing tetronic acid alkyl esters

Info

Publication number
IL105938A
IL105938A IL105938A IL10593893A IL105938A IL 105938 A IL105938 A IL 105938A IL 105938 A IL105938 A IL 105938A IL 10593893 A IL10593893 A IL 10593893A IL 105938 A IL105938 A IL 105938A
Authority
IL
Israel
Prior art keywords
formula
acid alkyl
alkyl ester
tetronic acid
alkyl esters
Prior art date
Application number
IL105938A
Other languages
English (en)
Other versions
IL105938A0 (en
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
Publication of IL105938A0 publication Critical patent/IL105938A0/xx
Publication of IL105938A publication Critical patent/IL105938A/xx

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
    • C07D307/38—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 substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/40—Radicals substituted by oxygen atoms
    • 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)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Wire Bonding (AREA)
  • Furan Compounds (AREA)
IL105938A 1992-06-11 1993-06-07 Process for preparing tetronic acid alkyl esters IL105938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH184692 1992-06-11

Publications (2)

Publication Number Publication Date
IL105938A0 IL105938A0 (en) 1993-10-20
IL105938A true IL105938A (en) 1997-04-15

Family

ID=4219984

Family Applications (1)

Application Number Title Priority Date Filing Date
IL105938A IL105938A (en) 1992-06-11 1993-06-07 Process for preparing tetronic acid alkyl esters

Country Status (17)

Country Link
US (1) US5310947A (fr)
EP (1) EP0573999B1 (fr)
JP (1) JP3166017B2 (fr)
KR (1) KR940000451A (fr)
CN (1) CN1043346C (fr)
AT (1) ATE170181T1 (fr)
AU (1) AU666729B2 (fr)
CA (1) CA2092347A1 (fr)
CZ (1) CZ282943B6 (fr)
DE (1) DE59308915D1 (fr)
DK (1) DK0573999T3 (fr)
ES (1) ES2119835T3 (fr)
FI (1) FI106124B (fr)
HU (1) HU213832B (fr)
IL (1) IL105938A (fr)
PL (1) PL173073B1 (fr)
SK (1) SK280170B6 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5781081A (en) * 1995-09-01 1998-07-14 Ngk Spark Plug Co., Ltd. LC-type dielectric filter having an inductor on the outermost layer and frequency adjusting method therefor
CA2211503A1 (fr) * 1996-09-04 1998-03-04 Josef Schroer Procede de preparation de derives de l'acide tetronique
JP2001256751A (ja) * 2000-03-13 2001-09-21 Sony Corp シャッター及びこれを有するディスクカートリッジ
US7373951B2 (en) 2004-09-07 2008-05-20 Fisher Controls International Llc Control valve having “C” seal
JP5763231B1 (ja) 2014-02-18 2015-08-12 Ｗｈｉｌｌ株式会社 操作装置および電動モビリティ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845037C2 (de) * 1978-10-16 1980-12-11 Fa. Dr. Willmar Schwabe, 7500 Karlsruhe Verfahren zur Herstellung von Tetronsäuremethylester
HU195773B (en) * 1985-09-24 1988-07-28 Lonza Ag Process for preparing alkyl esters of 4-alkoxy-3-pyrrolin-2-on-1-yl-acetic acid
CH668423A5 (de) * 1986-06-19 1988-12-30 Lonza Ag Verfahren zur herstellung von 4-alkoxy-3-pyrrolin-2-onen.
EP0409147B1 (fr) * 1989-07-20 1994-06-15 Lonza Ag Procédé pour la préparation des esters de l'acide tétronique

Also Published As

Publication number Publication date
ES2119835T3 (es) 1998-10-16
FI932697A (fi) 1993-12-12
CN1043346C (zh) 1999-05-12
IL105938A0 (en) 1993-10-20
CA2092347A1 (fr) 1993-12-12
JP3166017B2 (ja) 2001-05-14
PL173073B1 (pl) 1998-01-30
AU666729B2 (en) 1996-02-22
CZ282943B6 (cs) 1997-11-12
KR940000451A (ko) 1994-01-03
EP0573999B1 (fr) 1998-08-26
CZ112993A3 (en) 1994-01-19
DK0573999T3 (da) 1998-10-26
PL299256A1 (en) 1993-12-13
FI932697A0 (fi) 1993-06-11
CN1083482A (zh) 1994-03-09
EP0573999A1 (fr) 1993-12-15
US5310947A (en) 1994-05-10
HU9301717D0 (en) 1993-09-28
HUT64530A (en) 1994-01-28
JPH0656813A (ja) 1994-03-01
FI106124B (fi) 2000-11-30
AU3999493A (en) 1993-12-16
SK59893A3 (en) 1994-02-02
HU213832B (en) 1997-10-28
SK280170B6 (sk) 1999-09-10
DE59308915D1 (de) 1998-10-01
ATE170181T1 (de) 1998-09-15

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Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
KB Patent renewed
RH1 Patent not in force