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DOI: 10.1055/s-2002-35578
Cross-Conjugated Oligo(enynes)
Publikationsverlauf
Received
27 November 2001
Publikationsdatum:
20. November 2002 (online)


Abstract
Synthetic efforts toward cross-conjugated enyne oligomers are detailed in this account. This includes the realization of iso-polydiacetylenes (iso-PDAs) and iso-polytriacetylenes (iso-PTAs), the cross-conjugated constitutional isomers of polydiacetylenes and polytriacetylenes, respectively. These compounds can be readily accessed via palladium-catalyzed cross-coupling reactions between vinyl triflates and terminal alkynes, or oxidative acetylenic coupling of terminal alkynes using Hay methodology. Electronic communication along the π-framework of these oligomers is described as a function of both oligomer length and terminal substitution.
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1 Introduction
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2 iso-Polydiacetylenes
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3 iso-Polytriacetylenes and Beyond
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4 Donor-Acceptor Derivatives of Cross-Conjugated Enynes
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5 Conclusions and Perspectives
Key words
cross conjugation - enynes - conjugated oligomers - structure-function studies - alkynes