首页> 外国专利> optically active 2 - methyl - 1.3 - acid, nonyl ester derivatives, compositions containing fluessigkristalline and optical schaltendes element.

optically active 2 - methyl - 1.3 - acid, nonyl ester derivatives, compositions containing fluessigkristalline and optical schaltendes element.

机译:光学活性的2-甲基-1.3-酸,壬酯衍生物,含有氟西克里斯汀碱和光学沙尔丁德元素的组合物。

摘要

A compound represented by formula (I) CHEM wherein R1 represents an alkyl group having 1 to 20 carbon atoms or an alkoxy group having from 1 to 20 carbon atoms, R2 represents an alkyl group having from 1 to 15 carbon atoms, an alkanoyl group having from 2 to 15 carbon atoms, an alkoxycarbonyl group having from 2 to 15 carbon atoms, an alkoxyalkyl group having from 2 to 15 carbon atoms, an alkoxyalkanoyl group having from 3 to 15 carbon atoms, a halogenated alkyl group having from 1 to 15 carbon atoms or a halogenated alkanoyl group having from 2 to 15 carbon atoms, and the alkyl moiety in R1 and R2 is straight or branched; A and B each represents CHEM wherein X represents a halogen atom, a cyano group or a trifluoromethyl group; and the asterisk mark * indicates that the carbon atom provided with * is an asymmetrical carbon atom, a liquid crystal composition comprising at least one compound of formula (I), and an optical switching element using as a liquid crystal a liquid crystal composition comprising at least one compound of formula (I) are disclosed. The compound of formula (I) has a property to increase the degree of spontaneous polarization and is useful as a component of a liquid crystal composition.
机译:由式(I)表示的化合物,其中R 1代表具有1至20个碳原子的烷基或具有1至20个碳原子的烷氧基,R 2代表具有1至1个碳原子的烷基。 15个碳原子,具有2至15个碳原子的烷酰基,具有2至15个碳原子的烷氧基羰基,具有2至15个碳原子的烷氧基烷基,具有3至15个碳原子的烷氧基烷酰基,卤代R 1和R 2中的烷基部分为直链或支链的,具有1至15个碳原子的烷基或具有2至15个碳原子的卤代烷酰基。 A和B各自表示,其中X表示卤素原子,氰基或三氟甲基。星号*表示带有*的碳原子是不对称碳原子,包含至少一种式(I)的化合物的液晶组合物,以及使用了包含以下成分的液晶组合物作为液晶的光开关元件。公开了至少一种式(I)化合物。式(I)的化合物具有增加自发偏振度的性质,并且可用作液晶组合物的组分。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号