Titanium substituted pyridyl amine complexes, catalysts and processes for polymerizing ethylene and stryene
View Patent ↗New compositions, titanium-ligand complexes and arrays with pyridyl-amine ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with titanium metal centers have high performance characteristics, including high styrene incorporation into ethylene/styrene copolymers.
1. A metal-ligand complex characterized by the following formula:
wherein R 1 is selected from the group consisting of alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, substituted heteroalkyl, heterocycloalkyl, substituted hetercycloalkyl, aryl, substituted aryl, heteroaryl, and substituted heteroaryl; R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 are independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, substituted heteroalkyl, heterocycloalkyl, substituted hetercycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxyl, aryloxyl, silyl, boryl, phosphino, amino, thio, seleno, and nitro;
each L is independently selected from the group consisting of halide, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, substituted heteroalkyl heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxy, aryloxy, hydroxy, boryl, silyl, amino, amine, hydrido, allyl, diene, seleno, phosphino, phosphine, ether, thioether, carboxylates, thio, 1,3-dionates, oxalates, carbonates, nitrates, sulphates, ethers, and thioethers; optionally two or more L groups are combined in a ring structure; and
n is 1, 2, 3, or 4; and x is 1 or 2.
2. The metal-ligand complex of claim 1 , wherein R 1 and R 3 are selected from the group consisting of aryl, substituted aryl, heteroaryl and substituted heteroaryl, and x is 1.
3. The metal-ligand complex of claim 1 , wherein R 1 and R 7 are selected from the group consisting of aryl, substituted aryl, heteroaryl and substituted heteroaryl, and x is 1.
4. The metal-ligand complex of claim 1 , wherein R 3 and R 7 are selected from the group consisting of aryl, substituted aryl, heteroaryl and substituted heteroaryl, and x is 1.
5. A metal-ligand complex characterized by the following formula:
wherein Q 2 , Q 3 , Q 4 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, substituted heteroalkyl, heterocycloalkyl, substituted hetercycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxyl, aryloxyl, silyl, boryl, phosphino, amino, thio, seleno, and nitro;
Q 1 and Q 5 are selected from the group consisting of alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aryl, and substituted aryl; and
each L is independently selected from the group consisting of halide, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, substituted heteroalkyl heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxy, aryloxy, hydroxy, boryl, silyl, amino, amine, hydrido, allyl, diene, seleno, phosphino, phosphine, ether, thioether, carboxylates, thio, 1,3-dionates, oxalates, carbonates, nitrates, sulphates, ethers, and thioethers; optionally two or m re L groups; n is 1, 2, 3, or 4; and x=1.
6. The metal-ligand complex of claim 5 , wherein R 7 is selected from the group consisting of hydrogen, aryl, and substituted aryl.
7. The metal-ligand complex of either of claim 5 or 6 , wherein Q 1 , Q 3 and Q 5 are methyl groups and Q 2 and Q 4 are hydrogen.
8. The metal-ligand complex of claim 5 wherein the metal-ligand complexes are selected from: