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Title: Vanadium oxytrichloride, a novel reagent for the oxidative trimerization of o-dialkoxybenzenes to hexaalkoxytriphenylenes
Authors: Kumar, Sandeep
Varshney, S.K.
Issue Date: 1999
Publisher: Taylor & Francis
Citation: Liquid Crystals, 1999, Vol. 26, p1841-1843
Abstract: Triphenylene derivatives with six peripheral chains can make excellent discotic liquid crystals showing great promise in electronic devices. Vanadium oxytrichloride was found to be a novel reagent for the preparation of various triphenylene derivatives. Symmetrically substituted hexaalkoxytriphenylenes were obtained from o-dialkoxybenzenes by oxidative trimerization with VOCl3 in high yields. Oxidative coupling of a 3,3¾,4,4¾-tetraalkoxybiphenyl with 1,2-dialkoxybenzenes yielded unsymmetrically substituted derivatives of triphenylene; a direct coupling of a 3,3¾,4,4¾-tetraalkoxybiphenyl with alkoxyphenol produced monofunctionalized triphenylenes.
Description: Restricted Access.
ISSN: 0267-8292
1366-5855 (Online)
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Copyright: 1999 Taylor & Francis
Appears in Collections:Research Papers (SCM)

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