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:
May. 12, 2009
Filed:
Mar. 02, 2006
Juan Jose Almena Perea, Hanau, DE;
Axel Monsees, Frankfurt, DE;
Renat Kadyrov, Frankfurt, DE;
Thomas Riermeier, Ober-Ramstadt, DE;
Kai Rossen, Hanau, DE;
Wolf-ruediger Krahnert, Obertshausen, DE;
Matthias Beller, OB Nienhagen, DE;
Stefan Klaus, Rostock, DE;
Alexander Zapf, Rostock, DE;
Juan Jose Almena Perea, Hanau, DE;
Axel Monsees, Frankfurt, DE;
Renat Kadyrov, Frankfurt, DE;
Thomas Riermeier, Ober-Ramstadt, DE;
Kai Rossen, Hanau, DE;
Wolf-Ruediger Krahnert, Obertshausen, DE;
Matthias Beller, OB Nienhagen, DE;
Stefan Klaus, Rostock, DE;
Alexander Zapf, Rostock, DE;
Degussa GmbH, Duesseldorf, DE;
Abstract
(Hetero)aromatic are prepared from halogen-substituted (hetero)aromatic compounds in the presence of a base and a palladium catalyst having a nonpyrophoric monodentate phosphane ligand. The phosphane ligand structure includes two radical groups having a tertiary carbon attached directly to phosphorous and one radical group having a primary carbon attached to the phosphorous.