Synthesis and Properties of Novel Liquid Crystalline Compounds, 3,4,5-Trialkoxybenzoic Anhydride

Abstract

Novel liquid crystalline compounds, 3,4,5-trialkoxybenzoic anhydrides 1 were synthesized and the properties were investigated. Behaviors of 1 (R = n-C_6H_<13>, n-C_8H_<17>, n-C<10>H<21>, n-C<12>H<25>, n-C<14>H<29> and (S)-3,7-dimethyloctyl, (R)-3,7-dimethyloctyl) showed enantiotropic columnar liquid crystal phases. In cases of (S)-3,7-dimethyloctyl and (R)-3,7-dimethyloctyl, the circular dichroism spectra allow observation of π-π^* and n-π^* transition.