申请人:Chisso Corporation
公开号:US05112523A1
公开(公告)日:1992-05-12
A novel phenylpyrimidinecarboxylate derivative which, when used as a component of liquid crystal compositions, can raise the clearing point of the mesomorphic range of the liquid crystal compositions and/or increase the dielectric anisotropy value of the compositions, and a liquid crystal compositions containing the derivative are provided, which derivative is expressed by the formula ##STR1## wherein X.sup.1 represents an alkyl or alkoxy each of 1-10 C; X.sup.2 represents a 4-substituted phenylk having an alkyl, of 1-10 C, F, Cl, Br or --CN at 4-position or a 3,4-disubstituted phenyl having F, Cl, Br or Cn at 4-position and F, Cl or Br at 3-position; and L represents a N atom and M represents a C atom.
提供一种新型的苯基嘧啶羧酸衍生物,当作为液晶组分使用时,可以提高液晶组分的介相区清晰点和/或增加组分的介电各向异性值。该液晶组分含有该衍生物,该衍生物的化学式为##STR1##其中,X.sup.1代表1-10个碳原子的烷基或烷氧基;X.sup.2代表4-取代苯基,该4-取代苯基在4-位置具有1-10个碳原子的烷基、F、Cl、Br或-CN,或者3,4-二取代苯基,在4-位置具有F、Cl、Br或CN,在3-位置具有F、Cl或Br;L代表N原子,M代表C原子。