The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 1985
Filed:
May. 03, 1983
Jean Jenck, Villeurbanne, FR;
Rhone-Poulenc Chimie De Base, Courbevoie, FR;
Abstract
Esters, e.g., alkyl adipates, are facilely prepared by carbonylation among an alcohol, carbon monoxide and a monoolefin, e.g., an alkyl pentenoate, in the presence of a catalytically effective amount of cobalt and a tertiary nitrogen base, and optionally hydrogen, said reaction being carried out in an aromatic hydrocarbon reaction medium bearing from 1 to 3 nuclear substituents, and said substituents comprising cyano or a radical of the formula R--Y-- having up to 20 carbon atoms, wherein Y is a direct valence bond, an oxygen atom, a sulfur atom, a carbonyl group or a carbonyloxy group (--CO--O--), with R being bonded to the oxygen of the group --CO--O--, and R is alkyl, aralkyl or or aryl, or a cyano substituted such R--Y-- radical, or a radical R--Y-- which includes one of the divalent bridges --O--, --CO-- or --CO--O-- along its skeletal carbon chain, with the proviso that at least one of said substituents is either cyano or a radical R--Y-- wherein Y is other than a direct valence bond.