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:
Nov. 03, 2009
Filed:
Oct. 04, 2006
Applicants:
Armin Börner, Rostock, DE;
Jens Holz, Kessin, DE;
Juan Almena, Hanau, DE;
Renat Kadyrov, Frankfurt, DE;
Axel Monsees, Frankfurt, DE;
Thomas Riermeier, Ober-Ramstadt, DE;
Inventors:
Armin Börner, Rostock, DE;
Jens Holz, Kessin, DE;
Juan Almena, Hanau, DE;
Renat Kadyrov, Frankfurt, DE;
Axel Monsees, Frankfurt, DE;
Thomas Riermeier, Ober-Ramstadt, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to a process for preparing compounds of the general formula (I). Compounds of the general formula (I) are advantageous precursors for preparing phospholane catalysts, especially bisphospholane catalysts. The invention therefore likewise provides for the use of the substances in question for preparing these catalysts.