申请人:Merck Patent Gesellschaft mit beschrankter Haftung
公开号:US04330426A1
公开(公告)日:1982-05-18
Compounds of the formula ##STR1## wherein R.sub.1 is alkyl of 1-12 C atoms and R.sub.2 is an optionally perfluorinated alkyl, alkoxy or alkanoyloxy group, each of 1-12 C atoms are valuable liquid crystalline components for broadening the mesophase temperature range of liquid crystalline dielectrics having negative dielectric anisotropy.
式为##STR1##的化合物,其中R.sub.1是1-12个碳原子的烷基,R.sub.2是一个可选的全氟烷基、烷氧基或烷酰氧基团,每个团含有1-12个碳原子,是用于扩大具有负介电各向异性的液晶介质的向列相温度范围的有价值的液晶组分。