PROCESS FOR THE PRODUCTION OF CARBOXYLIC ACID ANHYDRIDES

A PROCESS FOR THE PRODUCTION OF A CARBOXYLIC ACID ANHYDRIDE COMPRISES CONTACTING A REACTION COMPOSITION COMPRISING A CARBOXYLIC ACID ESTER, A HYDROCARBYL HALIDE AND/OR A HYDROCARBYL ETHER REACTANT AND A HYDROCARBYL HALIDE PROMOTER WITH CARBON MONOXIDE IN THE PRESENCE OF A CATALYST COMPRISING AN INSO...

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Bibliographic Details
Main Authors ROBERT JOHN WATT, JOHN GLENN SUNLEY, BRUCE LEO WILLIAMS, DERRICK JOHN WATSON
Format Patent
LanguageEnglish
Published 30.08.2007
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:A PROCESS FOR THE PRODUCTION OF A CARBOXYLIC ACID ANHYDRIDE COMPRISES CONTACTING A REACTION COMPOSITION COMPRISING A CARBOXYLIC ACID ESTER, A HYDROCARBYL HALIDE AND/OR A HYDROCARBYL ETHER REACTANT AND A HYDROCARBYL HALIDE PROMOTER WITH CARBON MONOXIDE IN THE PRESENCE OF A CATALYST COMPRISING AN INSOLUBLE POLYMER SUPPORT HAVING PENDANT QUATERNISED N-BASE OR ALKYLATED N-OXIDE PYRIDINE GROUPS SUPPORTING A RHODIUM SPECIES IN WHICH PROCESS THE RHODIUM SPECIES IS PREVENTED FROM LEACHING FROM THE POLYMER SUPPORT BY MAINTAINING THROUGHOUT THE PROCESS A FINITE CONCENTRATION OF CARBOXYLIC ACID ANHYDRIDE IN THE REACTION COMPOSITION.
Bibliography:Application Number: MY1994PI00439