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. 07, 2015
Filed:
Aug. 19, 2011
Lukas J. Goossen, Kaiserslautern, DE;
Nuria Rodriguez Garrido, Madrid, ES;
Filipe Manjolinho Costa, Berlin, DE;
Paul P. Lange, Dintikon, CH;
Lukas J. Goossen, Kaiserslautern, DE;
Nuria Rodriguez Garrido, Madrid, ES;
Filipe Manjolinho Costa, Berlin, DE;
Paul P. Lange, Dintikon, CH;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to a process for preparing a propiolic acid or a derivative thereof by reacting a terminal alkyne with carbon dioxide, which comprises performing the reaction in the presence of a base and a copper complex, especially a copper (I) complex having at least one ligand, at least one of the ligands of the copper complex being selected from monodentate ligands which have an aminic or iminic nitrogen atom capable of coordination with copper, and polydentate ligands having at least two atoms or atom groups which are capable of simultaneous coordination with copper and are selected from nitrogen, oxygen, sulfur, phosphorus and carbene carbon.