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 0959-9428

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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 (former - to 2024)
UEA Research Groups:	Faculty of Science > Research Groups > Synthetic Chemistry (former - to 2017) Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Chemistry of Light and Energy
Depositing User:	Rachel Smith
Date Deposited:	23 Nov 2010 16:49
Last Modified:	28 Mar 2025 05:02
URI:	https://ueaeprints.uea.ac.uk/id/eprint/11006
DOI:	10.1039/A606447G

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