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1. WO2006041457 - PROCESS FOR PRODUCING HETEROAROMATIC CARBOXYLIC ACIDS

Publication Number WO/2006/041457
Publication Date 20.04.2006
International Application No. PCT/US2004/032392
International Filing Date 01.10.2004
Chapter 2 Demand Filed 01.08.2006
IPC
C07D 213/807 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
213Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
02having three double bonds between ring members or between ring members and non-ring members
04having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
60with 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
78Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
79Acids; Esters
803Processes of preparation
807by oxidation of pyridines or condensed pyridines
CPC
C07D 213/80
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
213Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
02having three double bonds between ring members or between ring members and non-ring members
04having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
60with heteroatoms or with carbon atoms having three bonds to hetero atoms, with at the most one to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
78Carbon atoms having three bonds to hetero atoms, with at the most one to halogen, e.g. ester or nitrile radicals
79Acids; Esters
80in position 3
C07D 213/803
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
213Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
02having three double bonds between ring members or between ring members and non-ring members
04having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
60with heteroatoms or with carbon atoms having three bonds to hetero atoms, with at the most one to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
78Carbon atoms having three bonds to hetero atoms, with at the most one to halogen, e.g. ester or nitrile radicals
79Acids; Esters
803Processes of preparation
Y02P 20/54
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
20Technologies relating to chemical industry
50Improvements relating to the production of bulk chemicals
54using solvents, e.g. supercritical solvents or ionic liquids
Applicants
  • INVISTA Technologies s.à.r.l. [US]/[CH] (AllExceptUS)
  • THOMAS, William, Barry [GB]/[GB] (UsOnly)
  • WHISTON, Keith [GB]/[GB] (UsOnly)
  • GARCIA-VERDUGO, Eduardo, Cepeda [ES]/[ES] (UsOnly)
  • HAMLEY, Paul, Anthony [GB]/[GB] (UsOnly)
  • POLIAKOFF, Martyn [GB]/[GB] (UsOnly)
Inventors
  • THOMAS, William, Barry
  • WHISTON, Keith
  • GARCIA-VERDUGO, Eduardo, Cepeda
  • HAMLEY, Paul, Anthony
  • POLIAKOFF, Martyn
Agents
  • INVISTA TECHNOLOGIES S.A.R.L.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR PRODUCING HETEROAROMATIC CARBOXYLIC ACIDS
(FR) PROCEDE POUR LA FABRICATION D’ACIDES CARBOXYLIQUES HETEROAROMATIQUES
Abstract
(EN)
A process for the production of a heteroaromatic carboxylic acid comprising contacting in the presence of a catalyst, a precursor of said carboxylic acid with an oxidant, such contact being effected with said precursor and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point.
(FR)
L’invention concerne un procédé pour la fabrication d’un acide carboxylique hétéroaromatique comprenant la mise en contact, en présence d’un catalyseur, d’un précurseur dudit acide carboxylique avec un oxydant, ledit contact étant réalisé avec ledit précurseur et l’oxydant dans un solvant aqueux comprenant de l’eau dans des conditions supercritiques, ou presque supercritiques, proches du point supercritique.
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