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. 16, 2015
Filed:
Aug. 31, 2012
Rudy Francois Maria Jozef Parton, AA Echt, NL;
Michèle Catherine Christianne Janssen, AA Echt, NL;
Rudy Francois Maria Jozef Parton, AA Echt, NL;
Michèle Catherine Christianne Janssen, AA Echt, NL;
DSM IP ASSETS B.V., Heerlen, NL;
Abstract
This invention relates to a process for the alkoxycarbonylation of carboxylic acid functionalized alkenes or esters thereof, said process comprising: (a) reacting (i) a carboxylic acid functionalized alkene or ester thereof; (ii) a catalyst system comprising a source of Pd and a ligand, (iii) a source of anions derived from an acid with a pKa<3, (iv) carbon monoxide, and (v) a hydroxylgroup comprising compound, under conditions wherein an ester carbonylation product is produced, whereby the process is carried out in the initial presence of an ester carbonylation product. The presence of the ester carbonylation product results in stabilization of the catalyst system and prevents the formation of Pd black.