a-Halogenation of triphenylene-based discotic liquid crystals: towards a chiral nucleus

Boden, Neville, Bushby, Richard J., Cammidge, Andrew N., Duckworth, Sarah and Headdock, Gareth (1997) a-Halogenation of triphenylene-based discotic liquid crystals: towards a chiral nucleus. Journal of Materials Chemistry, 7 (4). pp. 601-605. ISSN 1364-5501

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Abstract

In an attempt to prepare chiral discotic liquid crystals based on a helically twisted triphenylene nucleus a route has been developed for the introduction of a-fluoro, -chloro and -bromo substituents and it is shown that multiple a-halogenation is also possible. The monosubstituted derivatives all show enhanced mesophase stability whilst formation of the mesophase is suppressed for the polyhalogenated derivatives. Rather surprisingly, reaction of 2,3,6,7,10,11-hexahexyloxytriphenylene (HAT6) with iodine monochloride results in chlorination rather than iodination.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
University of East Anglia > Faculty of Science > Research Groups > Synthetic Chemistry
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Depositing User: Rachel Smith
Date Deposited: 23 Nov 2010 16:49
Last Modified: 25 Jul 2018 08:06
URI: https://ueaeprints.uea.ac.uk/id/eprint/11006
DOI: 10.1039/A606447G

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