Dsm IP Assets B.v.

Michèle Catherine Christianne Janssen

Rudy Francois Maria Jozef Parton

Johannes Gerardus De Vries

Anna Maria Cornelia Francisca Castelijns

Natascha Sereinig

Barthel Engendahl

De Johannes Gerardus Vries

Henricus Wilhelmus Leonardus Marie Vaessen

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&#x3c;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.

Process for the alkoxycarbonylation of functionalized alkenes

The invention relates to a process for the isomerization of unsaturated fatty acids or esters or amides thereof, said process comprising reacting: The process is particularly advantageous for the isomerization of substituted alkenes harboring a hydroxy group when the desired end product has a keto group, such as ricinoleic acid or ester thereof.

Process for the isomerisation of substituted alkenes

Growing community of inventors

AA Echt, Netherlands

Michèle Catherine Christianne Janssen