H. Gallardo et al., NEW CHIRAL LIQUID-CRYSTAL COMPOUNDS - HYL)-1,3-DIOXOLAN-2-YL]-PHENYL-4-N-ALKOXYBENZOATES AND 4-N-ALKOXYCINNAMATES()), Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 281, 1996, pp. 73-78
New liquid crystal compounds, hyl)-1,3-dioxolan-2-yl]phenyl-4-n-alkoxy
benzoates, I, and yl)-1,3-dioxoian-2-yl]phenyl-4-n-alkoxycinnamates, I
I, have been synthesized and the thermotropic liquid-crystalline behav
iour investigated. The compounds did not exhibit a chiral smectic C ph
ase. The mesophases present in these compounds are cholesteric and sme
ctic A phases. The transition temperatures of series II are higher tha
n those for series I.