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:
Apr. 18, 2022
Filed:
Jul. 24, 2019
Basf SE, Ludwigshafen Am Rhein, DE;
Mathias Schelwies, Heidelberg, DE;
Rocco Paciello, Ludwigshafen, DE;
Gunnar Heydrich, Ludwigshafen am Rhein, DE;
Günter Wegner, Römerberg, DE;
Gerd-Dieter Tebben, Mannheim, DE;
Martin Haubner, Eppelheim, DE;
Andreas Keller, Speyer, DE;
Oliver Bey, Niederkirchen, DE;
Stephanie Renz, Schwetzingen, DE;
Georg Seeber, Lambsheim, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral α,β-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral α,β-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I):