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:
Aug. 27, 2013
Filed:
Nov. 03, 2010
John R. Hagadorn, Houston, TX (US);
Matthew W. Holtcamp, Huffman, TX (US);
Matthew S. Bedoya, Humble, TX (US);
Renuka N. Ganesh, Houston, TX (US);
John R. Hagadorn, Houston, TX (US);
Matthew W. Holtcamp, Huffman, TX (US);
Matthew S. Bedoya, Humble, TX (US);
Renuka N. Ganesh, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
This invention relates to a carbene complex of metal salt represented by the formula:[T−M(R)]wherein, R is a monoanionic group; c is 1 or 2; M is a Li or Mg; T is a cyclic carbene ligand; and n is selected from the group of integers comprising 1 to 24 wherein the complex has 50% or less decomposition when stored in 0.01 molar benzene at 23° C. for a period of 1 hour. This invention also relates to transition-metal-carbene complexes prepared from such carbene complexes of metal salts, where the transition-metal-carbene complex is represented by the formula: [M*(T)(L)(L)(L)], where M* is a transition metal from Group 6, 7, 8, 9, 10, 11 or 12, T is a cyclic carbene ligand, Lis a neutral ligand, Lis a monoanionic ligand, Lis a dianionic ligand, q is 0, 1, 2, 3 or 4, s is 0, 1, 2, 3, or 4, t is 0, 1, 2, 3, or 4, g is the overall charge of the molecule. The transition-metal-carbene complexes may be used for synthesis reactions, including metathesis of olefins.