IE831074L - Preparation of thiophene-2-acetic acids - Google Patents

Preparation of thiophene-2-acetic acids

Info

Publication number
IE831074L
IE831074L IE831074A IE107483A IE831074L IE 831074 L IE831074 L IE 831074L IE 831074 A IE831074 A IE 831074A IE 107483 A IE107483 A IE 107483A IE 831074 L IE831074 L IE 831074L
Authority
IE
Ireland
Prior art keywords
formula
image
thiophene
preparation
cyanoalkylthiophene
Prior art date
Application number
IE831074A
Other versions
IE55097B1 (en
Original Assignee
Roussel Uclaf
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 Roussel Uclaf filed Critical Roussel Uclaf
Publication of IE831074L publication Critical patent/IE831074L/en
Publication of IE55097B1 publication Critical patent/IE55097B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/12—Radicals substituted by halogen atoms or nitro or nitroso radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/24—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

A 2-thiophene acetic acid compound of formula (I): <IMAGE> in which: R represents an alkyl radical of 1 to 4 carbon atoms; and R1, R2 and R3 are the same or different and each represents a hydrogen atom, an alkyl radical of 1 to 4 carbon atoms or a halogen atom; is prepared by reacting a haloalkylthiophene of formula (III): <IMAGE> in which R, R1, R2 and R3 are as defined above and Hal represents a halogen atom, with a cyanide of formula A-CN in which A represents an alkali metal atom, an alkaline-earth metal equivalent or a hydrogen atom to produce a cyanoalkylthiophene of formula (IV): <IMAGE> in which R, R1, R2 and R3 are as defined above, and hydrolysing the cyanoalkylthiophene of formula (IV) to the 2-thiophene acetic acid compound of formula (I). The compound of formula (I) is an intermediate in the production of pharmaceuticals. [GB2132608A]
IE1074/83A 1982-12-03 1983-05-10 Production of thiophene compounds IE55097B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8220272A FR2537138A1 (en) 1982-12-03 1982-12-03 PROCESS FOR THE PREPARATION OF ACETIC 2-THIOPHENE ACID DERIVATIVES

Publications (2)

Publication Number Publication Date
IE831074L true IE831074L (en) 1984-06-03
IE55097B1 IE55097B1 (en) 1990-05-23

Family

ID=9279758

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1074/83A IE55097B1 (en) 1982-12-03 1983-05-10 Production of thiophene compounds

Country Status (22)

Country Link
JP (1) JPS59106483A (en)
KR (1) KR900003281B1 (en)
AT (1) AT392785B (en)
AU (1) AU557065B2 (en)
BE (1) BE896440A (en)
CA (1) CA1201442A (en)
CH (1) CH653681A5 (en)
DE (1) DE3314028C2 (en)
DK (1) DK157492C (en)
ES (1) ES8401958A1 (en)
FI (1) FI80882C (en)
FR (1) FR2537138A1 (en)
GB (1) GB2132608B (en)
HU (1) HU191831B (en)
IE (1) IE55097B1 (en)
IT (1) IT1174758B (en)
LU (1) LU84749A1 (en)
NL (1) NL8301693A (en)
NZ (1) NZ204510A (en)
PT (1) PT76535B (en)
SE (1) SE453918B (en)
ZA (1) ZA832697B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1276738B1 (en) * 1995-06-16 1997-11-03 Erregierre Spa PROCESS FOR THE PREPARATION OF DERIVATIVES OF -METHYL-2- THIOPHENEACETIC ACID

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE33054B1 (en) * 1968-04-16 1974-03-06 Ici Ltd Heterocyclic compounds
GB2003570B (en) * 1977-06-08 1982-01-20 Imi Opella Ltd Stop valve

Also Published As

Publication number Publication date
AU557065B2 (en) 1986-12-04
AT392785B (en) 1991-06-10
FR2537138A1 (en) 1984-06-08
FR2537138B1 (en) 1985-05-24
GB8312702D0 (en) 1983-06-15
KR840006987A (en) 1984-12-04
PT76535A (en) 1983-05-01
LU84749A1 (en) 1983-12-05
FI80882B (en) 1990-04-30
BE896440A (en) 1983-10-12
HU191831B (en) 1987-04-28
NZ204510A (en) 1986-02-21
PT76535B (en) 1986-03-12
DE3314028C2 (en) 1995-05-24
FI831116L (en) 1984-06-04
GB2132608A (en) 1984-07-11
DK157492C (en) 1990-06-11
AU1357383A (en) 1984-06-07
NL8301693A (en) 1984-07-02
DK140083A (en) 1984-06-04
CH653681A5 (en) 1986-01-15
IE55097B1 (en) 1990-05-23
ATA286783A (en) 1990-11-15
ES521231A0 (en) 1984-01-01
DE3314028A1 (en) 1984-06-07
JPS59106483A (en) 1984-06-20
ZA832697B (en) 1983-12-28
ES8401958A1 (en) 1984-01-01
IT1174758B (en) 1987-07-01
DK140083D0 (en) 1983-03-28
SE453918B (en) 1988-03-14
GB2132608B (en) 1986-06-04
CA1201442A (en) 1986-03-04
DK157492B (en) 1990-01-15
KR900003281B1 (en) 1990-05-12
FI831116A0 (en) 1983-03-31
SE8301786D0 (en) 1983-03-30
SE8301786L (en) 1984-06-04
FI80882C (en) 1990-08-10
JPH0439468B2 (en) 1992-06-29
IT8348216A0 (en) 1983-05-04

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Legal Events

Date Code Title Description
MK9A Patent expired