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A general synthesis of macrocyclic pi-electron-acceptor systems

Colquhoun, H.M., Greenland, B.W., Zhu, Z.X., Shaw, J.S., Cardin, C.J., Burattini, S., Elliott, J.M., Basu, S., Gasa, T.B. and Stoddart, J.F. (2009) A general synthesis of macrocyclic pi-electron-acceptor systems. Organic Letters, 11 (22). pp. 5238-5241. ISSN 1523-7052

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To link to this item DOI: 10.1021/ol9021782

Abstract/Summary

Cyclocondensations of aromatic diamines with 1,1'-bis(2,4-dinitrophenyl)-4,4'-bipyridinium salts afford doubly or quadruply charged, macrocyclic, N,N'-diarylbipyridinium cations. These are tolerant of a wide range of acids, bases, and nucleophiles, although they appear to undergo reversible, one-electron reduction by tertiary amines. Single-crystal X-ray analysis demonstrates the presence of a macrocycle conformation in which the 4,4'-bipyridinium and 4,4'-biphenylenedisulfonyl residues are suitably spaced and aligned for complexation with pi-donor arenes, and NMR studies in solution indeed confirm binding to 1,5-bis[hydroxy(ethoxy)ethoxy]naphthalene.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11147
Uncontrolled Keywords:SEQUENCE INFORMATION, RECOGNITION, HOSTS

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