Synthesis of calixarene-linked discotic triphenylene

Abstract

The syntheses of new macrocyclic molecules containing calixarene and discotic triphenylene units in good yields are reported. Structural and conformational characterization of these new compounds was achieved by UV/Vis, FTIR, and NMR spectroscopy; mass spectrometry; and elemental analysis. The liquid-crystalline behavior was studied by polarizing optical microscopy, differential scanning calorimetry, and X-ray diffraction. The symmetrical calix[4]arene-linked triphenylene dimer with a C10 chain (2b) exhibited the liquid-crystalline behavior of a calixarene bowlic column with two triphenylene units as ancillary lateral columns. The first calixarene-linked triphenylenes have been synthesized and their mesomorphic properties studied. The symmetrical calix[4]arene-linked triphenylene dimer with a C10 chain exhibited the liquid-crystalline behavior of a calixarene bowlic column with two triphenylene units as ancillary lateral columns. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.