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:
Jan. 07, 2020
Filed:
Nov. 07, 2017
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventors:
Katrin Marie Dyballa, Recklinghausen, DE;
Robert Franke, Marl, DE;
Dirk Fridag, Haltern am See, DE;
Dieter Hess, Marl, DE;
Assignee:
EVONIK DEGUSSA GMBH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/141 (2006.01); B01J 31/18 (2006.01); C07C 45/50 (2006.01); C07F 15/00 (2006.01); C07F 9/145 (2006.01);
U.S. Cl.
CPC ...
C07F 9/141 (2013.01); B01J 31/185 (2013.01); C07C 45/50 (2013.01); C07C 45/505 (2013.01); C07F 9/145 (2013.01); C07F 15/008 (2013.01); C07F 15/0073 (2013.01); B01J 2231/321 (2013.01); B01J 2531/822 (2013.01);
Abstract
The invention relates to bisphosphites having 2,4-tert-butylphenyl units and a method for the preparation thereof. Furthermore, the invention relates to the use of the compounds as ligands in a ligand-metal complex. The compound, and also the complex, may be used as a catalytically active composition in hydroformylation reactions.