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:
Jul. 31, 2007
Filed:
Oct. 22, 2003
Aaron L. Odom, Lansing, MI (US);
James T. Ciszewski, East Lansing, MI (US);
Aaron L. Odom, Lansing, MI (US);
James T. Ciszewski, East Lansing, MI (US);
Board of Trustees of Michigan State University, East Lansing, MI (US);
Abstract
Compounds and processes for catalytic ring-opening cyclooligomerization metathesis and ring-closing metathesis of olefins are described. The compound is a molybdenum or tungsten metal (M) complex which comprises an imido ligand (N—R) bound to the M to provide an M=N—R site, an M=C reaction site wherein the C of the M=C reaction site is tethered to the R of the imido ligand via a carbon or carbon and heteroatom (NOS) chain containing 1 to 12 carbon atoms to form a ring structure, and two to four ligands (R') bound to the M to provide two to four M-R′ sites. In particular embodiments, the M-R′ sites include each of the oxygens of a dialkoxide ligand or each of the nitrogens of an η-pyrrolyl ligand bound to the M.