Patent ID: 7037988
Filing Date: 2006-05-02
Classification: C07C,H04N,Y02P

Abstract:
1. A process for production of higher linear alpha olefins and/or alkyl-branched alpha olefins having a chain length of from 4 to 100 carbon atoms comprising: co-oligomerising one or more alpha olefins other than ethylene with ethylene in the presence of a metal catalyst system employing one or more bis-aryliminepyridine MX wherein M is a metal atom selected from Fe or Co; a is 2 or 3; X is halide, optionally substituted hydrocarbyl, alkoxide, amide, or hydride; Y is a ligand which may insert an olefin; NC- is a non-coordinating anion; p+q is 2 or 3, matching the formal oxidation of said metal atom; L is a neutral Lewis donor molecule; b=0, 1, or 2; R 1 -R 5 are each, independently, hydrogen, optionally substituted hydrocarbyl, an inert functional group, or any two of R 1 -R 3 vicinal to one another taken together may form a ring; each Z, which may be identical or different, is an optionally substituted aromatic hydrocarbon ring; an optionally substituted polyaromatic hydrocarbon moiety; an optionally substituted heterohydrocarbyl moiety; or an optionally substituted aromatic hydrocarbon ring in combination with a metal, said optionally substituted aromatic hydrocarbon ring being π-co-ordinated to the metal; said co-oligomerising being carried out under conditions comprising an ethylene pressure of from about 0.1 MPa to about 1.6 MPa and a temperature of from about −100° C. to about 300° C.