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:
Nov. 04, 2014
Filed:
Apr. 09, 2009
Robert H. Grubbs, South Pasadena, CA (US);
Cheol Keun Chung, Westfield, NJ (US);
Jean-baptiste Bourg, Monrovia, CA (US);
Kevin Kuhn, Annandale, VA (US);
Robert H. Grubbs, South Pasadena, CA (US);
Cheol Keun Chung, Westfield, NJ (US);
Jean-Baptiste Bourg, Monrovia, CA (US);
Kevin Kuhn, Annandale, VA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
This invention relates generally to olefin metathesis, more particularly, to tri- or tetra-substituted imidazolinium salts which are precursors to N-heterocyclic carbene (NHC) ligands with tri- or tetra-substituted imidazolinium rings, organometallic ruthenium complexes comprising gem di-substituted imidazolinium NHC ligands, organometallic ruthenium complexes comprising tri- or tetra-substituted imidazolinium NHC ligands, and to olefin metathesis methods using them. The catalysts and methods of the invention have utility in the fields of catalysis, organic synthesis, and industrial chemistry.