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:
Dec. 30, 1997
Filed:
Dec. 29, 1995
Applicant:
Inventors:
Wolfgang A Herrmann, Freising, DE;
Jakob Fischer, Kirchdorf, DE;
Martina Elison, Munchen, DE;
Christian Kocher, Munchen, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 19 ; 560 20 ; 560 51 ; 560 55 ; 560104 ; 568316 ; 568433 ; 568631 ; 568632 ; 585436 ;
Abstract
The preparation of aromatic olefins from haloaromatics and olefins (Heck reaction) is carried out in the presence of palladium complexes as catalysts, which complexes contain heterocyclic carbenes as ligands.