申请人:Mitsubishi Rayon Company Ltd.
公开号:US05480580A1
公开(公告)日:1996-01-02
Optical active compounds which are chemically stable, are not colored, have a good optical stability, and which give a liquid crystal composition having a large spontaneous polarization when the compound is incorporated, are provided. The optical active compound have an asymmetric carbon atom fixed by a .delta.-valerolactone ring and the permanent dipole moment derived from the carboxylic group is fixed by the .delta.-valerolactone ring and two alkyl groups which can be regarded as a part of a measogen.
提供了具有化学稳定性,不着色,具有良好光学稳定性并在化合物纳入时提供具有大的自发极化的液晶组合物的光学活性化合物。光学活性化合物具有由δ-戊内酯环固定的不对称碳原子,由羧基导出的永久偶极矩由δ-戊内酯环和两个烷基固定,可以视为一部分measogen。