Synthesis of Aryl Coupled BIS Phenoxides and Their Use in Olefin Polymerization Catalyst Systems With Activator-Supports

摘要

Disclosed herein are methods of making bis(phenol) ligand compounds and transition metal bis(phenolate) compounds. The transition metal bis(phenolate) compounds can be used as components in catalyst systems for the polymerization of olefins.

主权项

1. A method of making a bis(phenol) ligand compound having the formula: the method comprising:
(i) contacting a phenol compound having the formula:with
(a) zinc metal;(b) a zinc-containing transfer agent; or(c) a halogen transfer agent and a zinc transfer compound; in the presence of a reaction solvent to form a first mixture; and
(ii) contacting the first mixture with a palladium cross-coupling catalyst system and a substituted or unsubstituted, saturated or unsaturated, C4 to C8 heterocyclic compound having the formula: to form a ligand reaction mixture comprising the bis(phenol) ligand compound having formula (II); wherein:R2, R3, R4, and R5 independently are H or a C1 to C18 hydrocarbyl or halogenated hydrocarbyl group;is a substituted or unsubstituted, saturated or unsaturated, C4 to C8 heterocyclic group, wherein each RA independently is a C1 to C18 hydrocarbyl or halogenated hydrocarbyl group, and m is 0, 1, 2, or 3; and
each XA independently is Cl, Br, or I.