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. 11, 2006
Filed:
Sep. 26, 2002
Xavier Sava, Mannheim, DE;
Michael Slany, Kirchheim, DE;
Michael Röper, Wachenheim, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
A system comprising a diphosphine of the formulaR>P—(CH)—PRRwhereRis a divalent radical which together with the phosphorus atom to which it is linked forms an unsubstituted or substituted 2-phosphatricyclo[3.3.1.1{3,7}]decyl group or a derivative thereof in which one or more of the carbon atoms are replaced by heteroatoms,R, Rare each, independently of one another, a monovalent radical having from 1 to 20 atoms or together form a divalent radical having from 2 to 20 atoms,n is 4 or 5,and a mixture of such diphosphines,and palladium or a palladium compound is suitable as carbonylation catalyst for the carbonylation of a conjugated diene.