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US 6,177,528 B1Granted
Substituted aminomethylphosphines, compositions and coordination complexes of same, their synthesis and processes using same
AssigneeSymyx Technologies, Inc.
InventorsAnne Marie LaPointe, Anil Guram, Timothy S. Powers, Bernd Jandeleit, Thomas Boussie, Cheryl Lund
Life of this patent
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Abstract
Novel aminomethylphosphine ligands have particular substituents on the central carbon atom. Such ligands form coordination complexes that may be catalysts for the polymerization of monomers or other catalytic induced reactions.
Claims14
A process of polymerizing comprising contacting an addition polymerizable monomer with a catalyst, said catalyst comprising a compound characterized by one of the formulas:
- wherein each of R1, R2, R3, and R4 is, independently, selected from the group consisting of hydrogen, alkyl, substituted alkyl, saturated cyclic hydrocarbons, aryl, substituted aryl, arylalkyl, substituted arylalkyl, acyl, amino, alkylamino, acylamino, silyl, germyl, stanyl, siloxy, phosphino, aryloxy, aryloxyalkyl, substituted aryloxyalkyl, heteroaryl, substituted heteroaryl, heteroarylalkyl, substituted heteroarylalkyl, heterocycles, substituted heterocycles, heterocyclicalkyl, substituted heterocyclicalkyl S-aryl and S-alkyl mercaptans and combinations thereof;
- and optionally R1 and R2 are combined together to form a ring structure and optionally, R3 and R4 are combined together in a ring structure;
- R′ is selected from the group consisting of alkyl, substituted alkyl, aryl, substituted aryl, arylaLkyl, substituted arylalkyl, silyl, germyl, stanyl, phosphino, aryloxy, aryloxyalkyl, substituted aryloxyalkyl, heteroaryl, substituted heteroaryl, heteroarylalkyl, substituted heteroarylalkyl, heterocycles, substituted heterocycles, heterocyclicalkyl, substituted heterocyclicalkyl S-aryl and S-alkyl mercaptans and combinations thereof;
- M is a metal selected from the group consisting of Groups 4-11 of the Periodic Table of Elements;
- D is independently in each occurrence selected from the group consisting of alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, substituted arylalkyl, halogen, amino, silyl, germyl, oxo, sulfide, alkoxy, hydride, sulfonate, acteate and combinations thereof;
- x is an integer from 1 to 3;
- and an activator.
4 more elements
Dependencies are inferred from the claim text.