Journal
TETRAHEDRON LETTERS
Volume 46, Issue 15, Pages 2603-2605Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2005.02.099
Keywords
triphenylene; discotic liquid crystals; monohydroxy-penta-alkoxytriphenylene; oxidative trimerization; iron(III) chloride
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A one-step process for the preparation of mono-functionalized triphenylene discotics is presented. Oxidative trimerization of ortho-dialkoxybenzenes using FeCl3 in nitromethane and a catalytic amount of various acids, furnished monohydroxy-pentaalkoxytriphenylene in addition to hexaalkoxytriplienylene. These products can be easily separated by column chromatography over aluminium oxide. (c) 2005 Elsevier Ltd. All rights reserved.
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