Synthesis of oligopyridines and their metal complexes as precursors to topological stereoisomers.
2001
Palladium-based carbon−carbon coupling reactions in sequence with halogen-exchange chemistry on a series of heterocycles lead to an efficient synthetic strategy for oligopyridines that bind metal ions such as ruthenium to form coordination racks. The particular structures are designed to form terpyridine subunits for octahedral binding. Reaction of 4,6-diiodopyrimidine produces a “double-bay” terpyridine from which binuclear coordination complexes have been formed.
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