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US 6,984,604 B2Granted
Supported bis(phosphorus) ligands and their use in the catalysis
AssigneeInvista North America S.A.R.L.
InventorsMichael W. Cobb, Weiming Qiu
Life of this patent
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Abstract
Supported bis(phosphorus) ligands are disclosed for use in a variety of catalytic processes, including the isomerization, hydrogenation, hydroformylation, and hydrocyanation of unsaturated organic compounds. Catalysts are formed when the ligands are combined with a catalytically active metal, such as nickel.
Claims4
A polymer-supported diol of the formula:
- wherein Pol and Q are connected via a carbon-carbon bond;
- Q is an organic ring structure;
- and Pol is an insoluble polymer support;
- comprising a diol grafted onto a polymer selected from the group consisting of a benzyl halide-containing polymer or a olefin-containing polymer;
- wherein the benzyl halide-containing polymer is attached to an aromatic carbon of the diol through a benzylic carbon or the olefin-containing polymer is attached to an aromatic carbon of the diol through an olefinic carbon;
- wherein said diol is selected from the group consisting of (a) biphenol, C,
- wherein each R is independently selected from the group consisting of H, C1 to C20 branched or straight chain alkyl and benzyl, C1 to C20 cycloalkyl, C6 to C20 aryl, OR1, CO2R1, and cyclic ether;
- wherein neighboring R1 groups are optionally connected to form a ring structure;
- wherein each R1 is independently selected from the group consisting of C1 to C20 branched or straight chain alkyl, C1 to C20 cycloalkyl, and C6 to C20 aryl;
- and wherein x and y are each independently 0-3, and x and y are each independently 0-4 if at least one of Rx or Ry contains an aromatic ring;
- and (b) binaphthol, D,
- wherein each R is independently selected from the group consisting of H, C1 to C20 branched or straight chain alkyl and benzyl, C1 to C20 cycloalkyl, C6 to C20 aryl, OR1, CO2R1, and cyclic ether;
- wherein each R1 is independently selected from the group consisting of C1 to C20 branched or straight chain alkyl, C1 to C20 cycloalkyl, and C6 to C20 aryl;
- wherein x and y are each independently 0-5, and x and y are each independently 0-6 if at least one of Rx or Ry contains an aromatic ring, and combinations thereof.
11 more elements
Dependencies are inferred from the claim text.