US 2003/0144514 A1 · Non-symmetrical ligands and catalyst systems thereof for ethylene oligomerisation to linear alpha olefins

Abstract

Non-symmetrical ligands of formula (I); 1 bis-aryliminepyridine MXn complexes comprising a non-symmetrical ligand of formula (I), wherein M is a metal selected from Fe or Co, n is 2 or 3, and X is halide, optionally substituted hydrocarbyl, alkoxide, amide, or hydride; [bis-aryliminepyridine MYp.Ln+][NC−]q complexes, comprising a non-symmetrical ligand of formula (I), wherein Y is a ligand which may insert an olefin, M is Fe or Co, NC− is a non-coordinating anion and p+q is 2 or 3, matching the formal oxidation of the metal atom M, L is a neutral Lewis donor molecule and n=0, 1, or 2; and processes for the production of alpha-olefins from ethylene, using said complexes.

Claims69

Dependent claims

A non-symmetrical bis-aryliminepyridine ligand of formula (I),

13
wherein R1-R5 and R7-R9 and R12-R14 are each, independently, hydrogen, optionally substituted hydrocarbyl, an inert functional group, or any two of R1-R3, R7-R9 and R12-R14 vicinal to one another taken together may form a ring, and R6 is hydrogen, optionally substituted hydrocarbyl, an inert functional group, or taken together with R7 or R4 to form a ring, R10 is hydrogen, optionally substituted hydrocarbyl, an inert functional group, or taken together with R9 or R4 to form a ring, and R11, and R15 are, independently, hydrogen or an inert functional group.

Dependencies are inferred from the claim text.

Facts

Application

10/320,213Filed 16 Dec 2002

Priority

EP 00301036.09 Feb 2000

Published

31 Jul 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

C07D 213/53
Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom: nitrogen atoms
Y02P 20/582
Improvements relating to the production of bulk chemicals: recycling of unreacted starting or intermediate materials
C07D
Heterocyclic compounds
Y02P
Low-carbon manufacturing

Non-symmetrical ligands and catalyst systems thereof for ethylene oligomerisation to linear alpha olefins

Life of this patent

Non-symmetrical ligands and catalyst systems thereof for ethylene oligomerisation to linear alpha olefins

Life of this patent

Abstract

Claims69