DE2827453

DE2827453

A process for the preparation of an unsaturated diester having the formula wherein R is an alkyl group of from 1 to 8 carbon atoms or an aralkyl group containing 6 carbon atoms in the ring and from 1 to 4 carbon atoms in the alkyl substituent, and R1 to R4 is hydrogen, a halogen, an alkyl group of f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZEHNER, LEE RANDALL, MEDIA, PA., US, KESLING JUN., HAVEN SYLVESTEREXEL HILL, PA., US
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:A process for the preparation of an unsaturated diester having the formula wherein R is an alkyl group of from 1 to 8 carbon atoms or an aralkyl group containing 6 carbon atoms in the ring and from 1 to 4 carbon atoms in the alkyl substituent, and R1 to R4 is hydrogen, a halogen, an alkyl group of from 1 to 4 carbon atoms or an aryl group containing 6 carbon atoms in the ring, by reacting carbon monoxide and oxygen with a diolefin having the formula wherein R1 to R4 which may be the same or different is as hereinabove described, in the presence of a catalytic amount of a platinum group metal compound, a copper for iron oxidant salt compound and a stoichiometric amount of a dehydrating agent.