Patent ID: 7176950

Claim:
A process for the preparation of a pyridinyl-linked bis-amino ligand comprising: (a) reacting 2,6-dibromophenyl amine with an arylboronic acid component which is substituted or unsubstituted in the presence of a palladium and CO 3 2− catalyst, to produce a 2,6-diarylphenyl amine which is substituted or unsubstituted; (b) reacting said 2,6-diarylphenyl amine with a 2,6-dialkanoic pyridine characterized by the formula: wherein R′ and R″ are each independently a C 1 –C 20 hydrocarbyl group in the presence of an acid catalyst; to produce a mono-imine ligand characterized by the formula: wherein TRP is a terphenyl group which is substituted or unsubstituted and; (c) reacting said mono-imine ligand with an aniline which is substituted or unsubstituted in the presence of an acid catalyst, to produce a bis-amine ligand characterized by the structure: wherein: TRP is a substituted or unsubstituted terphenyl group; and AR is a substituted or unsubstituted aryl group.