Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfonic acids or salts thereof
Reexamination Certificate
2008-03-04
2008-03-04
Eyler, Yvonne (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfonic acids or salts thereof
C568S008000
Reexamination Certificate
active
11457996
ABSTRACT:
Ligand synthesis methods for the preparation of ligands having the formulawherein Q is selected from phosphorus, arsenic and antimony; wherein X1, X2and X3are carbon anions; and, wherein R15is selected from —SO3, —SO2N(R18), —CO2, —PO3, —AsO3, —SiO2, —C(CF3)2O; where R18is 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.
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Allen Nathan Tait
Goodall Brian Leslie
Kirk Thomas Cleveland
McIntosh, III Lester Howard
Cutliff Yate′ K
Deibert Thomas S.
Eyler Yvonne
Rohm and Haas Company
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