Campbell K, McDonald R, Branda NR, Tykwinski RR. Rigid, cross-conjugated macrocycles: a cyclic alternative to 4,4'-bipyridines in supramolecular chemistry.
Org Lett 2001;
3:1045-8. [PMID:
11277791 DOI:
10.1021/ol0156087]
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Abstract
[structure: see text]. The synthesis of two fully conjugated, rigid macrocyclic analogues to 4,4'-bipyridine is described. The use of these macrocycles in self-assembly processes is demonstrated by axial coordination to metalloporphyrins, and one system (R = Me) has been characterized by single-crystal X-ray crystallography.
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