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DOI: 10.1055/s-2005-865237
Towards the Synthesis of Ladder Oligo(p-aniline)s
Publication History
Received
11 December 2004
Publication Date:
21 April 2005 (online)


Abstract
Using Cadogan or copper-catalyzed Ullmann reaction, new shape-persistent ladder oligo(p-aniline)s were synthesized from 2,7-carbazole derivatives. Physical characterization of these electroactive and photoactive organic materials is also presented.
1 Introduction
2 Synthesis of Ladder Oligo(p-aniline)s via the Cadogan Ring-Closure Reaction
2.1 Indolocarbazole Derivatives
2.2 Diindolocarbazole Derivatives
2.3 An Approach to the Synthesis of a Tetramer
3 Synthesis of Ladder Oligo(p-aniline)s via the Copper-Catalyzed Ullmann Ring-Closure Reaction
3.1 Diindolocarbazole Derivatives
3.2 Tetramer Derivatives
4 Characterization of the Ladder Oligo(p-aniline)s
5 Conclusion
Key words
carbazoles - oligoanilines - Cadogan reaction - Ullmann reaction - ladder oligomers