Compound having unsaturated side-chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display element
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0634469A1
公开(公告)日:1995-01-18
A compound having an unsaturated side chain represented by the formula:
in which A and B are the same or different and represent an aromatic or heterocyclic group or either one of A and B represents a single bond; X₁, X₂ and X₃ are the same or different and represent a hydrogen atom or a lower alkyl group; R₁ represents a saturated or unsaturated alkyl group which may be substituted with a halogen atom or an alkoxyalkyl group which may be substituted with a halogen atom; X represents -CH₂CH₂-, -CH=CH-, -C≡C- or a single bond; n is an integer of 0 to 6; q is an integer of 1 to 15; p and s are each 0 or 1; and the asterisk * indicates an asymmetric carbon atom, which is useful as an intermediate of a liquid crystal or a monomer of a liquid crystalline polymer.
一种化合物,其不饱和侧链由式表示:
其中 A 和 B 相同或不同,代表芳香族基团或杂环基团,或 A 和 B 中的任一个代表单键;X₁、X₂ 和 X₃ 相同或不同,代表氢原子或低级烷基;R₁ 代表可被卤素原子取代的饱和或不饱和烷基或可被卤素原子取代的烷氧基烷基;X代表-CH₂CH₂-、-CH=CH-、-C≡C-或单键;n为0至6的整数;q为1至15的整数;p和s均为0或1;星号*表示不对称碳原子,可用作液晶的中间体或液晶聚合物的单体。