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:
Mar. 24, 2015
Filed:
Dec. 09, 2010
Christoph Gürtler, Köln, DE;
Thomas Ernst Müller, München, DE;
Pieter Ooms, Krefeld, DE;
Johann Rechner, Kempen, DE;
Friedhelm Risse, Köln, DE;
Angelina Prokofieva, Leverkusen, DE;
Franco Doro, Aachen, DE;
Burkhard Köhler, Zierenberg, DE;
Walter Leitner, Aachen, DE;
Aurel Wolf, Wülfrath, DE;
Christoph Gürtler, Köln, DE;
Thomas Ernst Müller, München, DE;
Pieter Ooms, Krefeld, DE;
Johann Rechner, Kempen, DE;
Friedhelm Risse, Köln, DE;
Angelina Prokofieva, Leverkusen, DE;
Franco Doro, Aachen, DE;
Burkhard Köhler, Zierenberg, DE;
Walter Leitner, Aachen, DE;
Aurel Wolf, Wülfrath, DE;
Bayer Intellectual Property GmbH, Monheim, DE;
Abstract
The invention relates to bimetallic complexes in which the ligand contains a salophen unit which complexes copper, manganese or cobalt and a phenanthroline unit which complexes palladium and the two systems are linked by a continuous conjugated system. The invention further relates to the use of these bimetallic complexes as catalysts for the oxidative carbonylation of aromatic hydroxy compounds to form diaryl carbonates, a process for preparing diaryl carbonates using the bimetallic complex as catalyst and also diaryl carbonates prepared by oxidative carbonylation of aromatic hydroxy compounds using the bimetallic complexes of the invention as catalysts.