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. 03, 2018
Filed:
May. 13, 2015
Basf SE, Ludwigshafen, DE;
Michael Limbach, Worms, DE;
Ivana Jevtovikj, Heidelberg, DE;
Nuria Huguet Subiela, Heidelberg, DE;
Alvaro Gordillo, Heidelberg, DE;
Sabine Chantal Eileen Stieber, Heidelberg, DE;
Ronald Lindner, Dossenheim, DE;
Miriam Bru Roig, Heidelberg, DE;
Michael Lejkowski, Neckargemuend, DE;
Takeharu Kageyama, Heidelberg, DE;
Stephan A. Schunk, Heidelberg-Rohrbach, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt, comprising reacting an alkene and carbon dioxide in the presence of a carboxylation catalyst and releasing the α,β-ethylenically unsaturated carboxylic acid salt with a base, the carboxylation catalyst being a transition metal complex, which comprises a structurally constrained bidentate P,X ligand, wherein X is selected from the group consisting of P, N, O, and carbene, the P and X atom are separated by 2 to 4 bridging atoms, and wherein the bridging atoms are part of at least one 5- to 7-membered cyclic substructure. A further catalytic processes for preparing α,βethylenically unsaturated carboxylic acid derivatives from COand an alkene is provided.