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:
Oct. 17, 2006
Filed:
Oct. 19, 2004
Applicants:
Peter Lappe, Dinslaken, DE;
Helmut Springer, Dinslaken, DE;
Rainer Lukas, Essen, DE;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for selectively hydroformylating dicyclopentadiene to 8(9)-formyltricyclo-[5.2.1.0]dec-3-ene in a heterogeneous reaction system using an aqueous solution of transition metal compounds, containing water-soluble organic phosphorus(III) compounds in complex-bound form, of group VIII of the Periodic Table of the Elements, wherein the water-soluble organic phosphorus(III) compounds are alkali metal or alkaline earth metal salts of sulfonated arylphosphines and aryldiphosphines.