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. 21, 1997
Filed:
Jan. 05, 1995
Applicant:
Inventor:
Otto E Sielcken, Sittard, NL;
Assignees:
DSM N.V., Heerlen, NL;
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; B01J / ;
U.S. Cl.
CPC ...
560204 ; 560233 ; 560239 ; 562519 ; 502162 ; 502167 ;
Abstract
Process for the preparation of a terminal ester by carbonylation of an internally unsaturated organic compound in the presence of an alcohol, carbon monoxide, palladium, an acid with a pK.sub.a of less than 2 (measured at 18.degree. C. in an aqueous solution) and a bidentate organic phosphorus, antimony or arsenic ligand compound having a bridging group, wherein the bridging group comprises a bis(.eta.-cyclopentadienyl) coordination group of a transition metal.