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US 9,458,185 B2Granted
First row metal-based catalysts for hydosilylation
AssigneeThe Regents of the University of California
InventorsT. Don Tilley, Jian Yang
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Abstract
In various embodiments, the invention provides phosphine ligand supported first row metal catalysts with surprising and efficacious catalytic activity for hydrosilylation of pi-bonded substrates. Also provided are methods of using the catalysts of the invention to prepare hydrosilylated compounds.
Claims10
A cationic compound which comprises a first row metal atom supported on a phosphorus-containing ligand, wherein said ligand has the formula:
- wherein
- Ro is a member selected from substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl and amine;
- Ra, Rb, Rc, Rd, Re, Rf, Ra′, Rb′, Rc′, Rd′, Re′, and Rf′ are members independently selected from H, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, halogen, CN, CF3, acyl, —SO2NR8R9, —NR8R9, —OR8, —S(O)2R8, —C(O)R9, —COOR8, —CONR8R9, —S(O)2OR8, —OC(O)R8, —C(O)NR8R9, —NR8C(O)R9, —NR8SO2R9 and —NO2, wherein two or more of Ra, Rb, Rc, Rd, Re, Rf, Ra′, Rb′, Rc′, Rd′, Re′, and Rf′, together with the atoms to which they are bonded, are optionally joined to form a ring system which is a member selected from substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl and substituted or unsubstituted heteroaryl
- wherein
- R8 and R9 are members independently selected from H, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl and substituted or unsubstituted heterocycloalkyl, and R8 and R9, together with the atoms to which they are bonded, are optionally joined to form a 5- to 7-membered ring.
2 more elements
Dependencies are inferred from the claim text.