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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 42, 1989 - Issue 3-4
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Original Articles

SYNTHESIS OF MIXED OLIGOMERIC HETEROARYLENES CONTAINING FURAN, THIOPHENE, AND SELENOPHENE RINGS; THEIR UV SPECTRA AND OXIDATION POTENTIALS

Hans Zimmer Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, 45221, USA
,
R. Shabana Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, 45221, USA
,
A. Galal Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, 45221, USA
,
H. B. Mark Jr. Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, 45221, USA
,
S. Gronowitz University of Lund, Lund, S-22007, Sweden
&
A. B. Hörnfeldt University of Lund, Lund, S-22007, Sweden
Pages 171-176 | Received 15 Jul 1988, Accepted 13 Aug 1988, Published online: 23 Oct 2006
 
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Abstract

Mixed oligomeric five-membered heteroarylenes 3a-f and 4a-e have been prepared by cross-coupling reaction of the Grignard reagents 2 derived of the appropriately substituted thiophenes 1 with either the 2-bromoheteroarylenes or the 2,5-dibromoheteroarylenes derived of furan, thiophene, and/or selenophene respectively. The UV spectra and oxidation potential of compounds 3a-f and 4a-e are discussed on the basis of co-planarity.

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