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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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 |
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Faculty \ School: | Faculty of Science > School of Chemistry |
Related URLs: | |
Depositing User: | Rachel Smith |
Date Deposited: | 23 Nov 2010 16:49 |
Last Modified: | 29 Apr 2022 00:18 |
URI: | https://ueaeprints.uea.ac.uk/id/eprint/11006 |
DOI: | 10.1039/A606447G |
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