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1. WO2020114928 - PROCESS FOR PREPARING A HYDROXY COMPOUND BY MEANS OF DECARBOXYLATION

Publication Number WO/2020/114928
Publication Date 11.06.2020
International Application No. PCT/EP2019/083215
International Filing Date 02.12.2019
IPC
C07C 37/50 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
37Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
50by reactions decreasing the number of carbon atoms
C07C 39/04 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
39Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
02monocyclic with no unsaturation outside the aromatic ring
04Phenol
C08G 64/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
64Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
CPC
C07C 37/50
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
37Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
50by reactions decreasing the number of carbon atoms
C08G 64/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
64Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
04Aromatic polycarbonates
06not containing aliphatic unsaturation
Applicants
  • COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG [DE]/[DE]
Inventors
  • BITTNER, Natalie
  • LANGANKE, Jens
  • MEINE, Niklas
  • HEIJL, Jan
Agents
  • LEVPAT
Priority Data
18211039.507.12.2018EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG EINER HYDROXYVERBINDUNG DURCH DECARBOXYLIERUNG
(EN) PROCESS FOR PREPARING A HYDROXY COMPOUND BY MEANS OF DECARBOXYLATION
(FR) PROCÉDÉ DE PRODUCTION D'UN COMPOSÉ HYDROXY PAR DÉCARBOXYLATION
Abstract
(DE)
Die Erfindung betrifft ein Verfahren zur Herstellung einer speziellen Hydroxyverbindung durch Decarboxylierung einer speziellen Carbonsäureverbindung oder eines Salzes dieser Carbonsäureverbindung, ein Verfahren zur Herstellung eines Diarylcarbonats, eines Bisphenols oder eines Polycarbonats, ein Diarylcarbonat oder Bisphenol, ein Polycarbonat und ein Verfahren zur Einstellung des Isotopenverhältnisses von C14 zu C12 in einem Polymer. Dabei wird ein spezielles Lösungsmittel während der Decarboxylierung verwendet.
(EN)
The invention relates to a process for preparing a specific hydroxy compound by means of decarboxylation of a specific carboxylic acid compound or a salt of said carboxylic acid compound, to a method for preparing a diaryl carbonate, a bisphenol or a polycarbonate, a diaryl carbonate or bisphenol, a polycarbonate, and to a method for adjusting the isotope ratio of C14 to C12 in a polymer. A specific solvent is used during decarboxylation.
(FR)
L’invention concerne un procédé de production d'un composé hydroxy particulier, par décarboxylation d’un composé acide carboxylique particulier ou d’un sel de ce dernier, un procédé de production d’un carbonate de diaryle, d’un bisphénol ou d’un polycarbonate, un carbonate de diaryle, un bisphénol ou un polycarbonate ainsi obtenus, et un procédé pour ajuster le rapport isotopique de C14 à C12 dans un polymère. On utilise à cet effet un solvant particulier pendant la décarboxylation.
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