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:
Mar. 04, 2008
Filed:
Jul. 17, 2006
Nathan Tait Allen, Norristown, PA (US);
Brian Leslie Goodall, Ambler, PA (US);
Thomas Cleveland Kirk, Ivyland, PA (US);
Lester Howard Mcintosh, Iii, Green Lane, PA (US);
Nathan Tait Allen, Norristown, PA (US);
Brian Leslie Goodall, Ambler, PA (US);
Thomas Cleveland Kirk, Ivyland, PA (US);
Lester Howard McIntosh, III, Green Lane, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
Ligand synthesis methods for the preparation of ligands having the formula wherein Q is selected from phosphorus, arsenic and antimony; wherein X, Xand Xare carbon anions; and, wherein Ris selected from —SO, —SON(R), —CO, —PO, —AsO, —SiO, —C(CF)O; where Ris selected from a hydrogen, a halogen, a hydrocarbyl group and a substituted hydrocarbyl group, are disclosed. Also disclosed are methods of complexing the ligands with late transition metals to form catalyst complexes that catalyze polymerization reactions and/or Heck coupling reactions.