申请人:Sumitomo Chemical Company, Limited
公开号:US05662828A1
公开(公告)日:1997-09-02
A compound having an unsaturated side chain represented by the formula: ##STR1## in which A and B are the same and different and represent an aromatic or heterocyclic group or either one of A and B represents a single bond; X.sub.1, X.sub.2 and X.sub.3 are the same or different and represent a hydrogen atom or a lower alkyl group; R.sub.1 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 --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.tbd.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.
一种具有不饱和侧链的化合物,其表示为以下式子:##STR1## 其中A和B相同或不同,并且表示芳香族或杂环基团,或者A和B中的任意一个表示单键;X.sub.1、X.sub.2和X.sub.3相同或不同,并且表示氢原子或低级烷基基团;R.sub.1表示饱和或不饱和的烷基基团,可以被卤素原子或被卤素原子取代的烷氧基烷基团所取代;X表示--CH.sub.2 CH.sub.2 --、--CH.dbd.CH--、--C.tbd.C--或单键;n是0到6的整数;q是1到15的整数;p和s均为0或1;星号*表示不对称碳原子,该化合物可用作液晶的中间体或液晶聚合物的单体。