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US 5,670,701 AGranted
Preparation of alkyl adipates
AssigneeRhone-Poulenc Chimie
InventorsPhilippe Denis, Jean-Michel Grosselin, Jean Jenck, Francois Metz, Paul Rouyer
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Abstract
The alkyl adipates are prepared by reacting admixture consisting essentially of alkyl 3-pentenoate and alkyl 2-pentenoate with carbon monoxide and an alcohol, at elevated temperature, under superatmospheric pressure and in the presence of a catalytically effective amount of cobalt or a cobalt compound and a nitrogenous heterocyclic base.
Claims2
A process for the preparation of an alkyl adipate comprising
- (i) enriching an alkyl 3-pentenoate containing raw material to at least 5% alkyl 2-pentenoate by addition of alkyl 2-pentenoate to form an admixture, and
- (ii) reacting said admixture with carbon monoxide and an alcohol, at elevated temperature, under superatmospheric pressure and in the presence of a catalytically effective amount of cobalt or a cobalt compound and a nitrogenous heterocyclic base.
Dependencies are inferred from the claim text.