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:
Jul. 26, 2005
Filed:
Jun. 19, 2001
Floris Jacobus Parlevliet, Amsterdam, NL;
Johannes Gerardus Vries DE, Maastricht, NL;
Andreas Hendrikus Maria Vries DE, Maastricht, NL;
Floris Jacobus Parlevliet, Amsterdam, NL;
Johannes Gerardus Vries De, Maastricht, NL;
Andreas Hendrikus Maria Vries De, Maastricht, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
Process for regenerating a Pd catalyst after a homogeneously catalyzed C—C coupling reaction in which the Pd catalyst precipitates, is separated from the reaction mixture and subsequently treated with Ior Br. The Pd catalyst can then be used in a subsequent reaction run. Preferably between 1 and 3 mole equivalents of Ior Br, relative to the quantity of Pd catalyst is used The C—C coupling reaction is preferably carried out in the presence of a support material. The C—C coupling reaction may be for example a Heck reaction, a Suzuki reaction or a cross-coupling reaction.