As starting materials for liquid crystalline polyesters, a number of bis [4-(ω-alkenyloxybenzoyl)oxy arenes (arising from the diols hydroquinone, 4,4′-biphenyldiol, 1,6-di(4-hydroxyphenyl)hexane, 2,7-fluorenediol and 2,7-fluorenonediol) have been synthesized and characterized by their elemental analyses, IR,1H NMR and MS. These esters exhibit liquid crystalline phases. The mainly nematic and in two cases also smectic phases have been studied by DSC and polarizing microscopy.