| abstract |
Acrylonitrile derivatives represented by general formula (I), a liquid-crystal composition containing the above compound and being improved in viscosity, optical anisotropy and so forth, and a liquid-crystal display device prepared from the composition, wherein A1 to A3 represent each phenylene, cyclohexylene, dioxane or pyrimidine; R1 represents cyano, halogeno, alkyl, alkoxy, etc.; and R2 represents a group represented by general formula (II) or (III). |