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:
Apr. 29, 2008
Filed:
Jun. 09, 2005
Applicants:
Warren Edward Piers, Calgary, CA;
Patricio Eduardo Romero Guajardo, Calgary, CA;
Inventors:
Warren Edward Piers, Calgary, CA;
Patricio Eduardo Romero Guajardo, Calgary, CA;
Assignee:
UTI Limited Partnership, Calgary, AB, CA;
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/80 (2006.01); C07F 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Organometallic complexes suitable as olefin metathesis catalysts are provided. The complexes are Group 8 transition metal carbenes bearing a cationic substituent and having the general structure (I) wherein M is a Group 8 transition metal, Land Lare neutral electron donor ligands, Xand Xare anionic ligands, m is zero or 1, n is zero or 1, and R, W, Y, and Z are as defined herein. Methods for synthesizing the complexes are also provided, as are methods for using the complexes as olefin metathesis catalysts.