申请人:Canon Kabushiki Kaisha
公开号:US05595685A1
公开(公告)日:1997-01-21
A mesomorphic compound represented by: ##STR1## where R.sub.1 and R.sub.2 are alkyl; X.sub.1 and X.sub.3 are a single bond, ##STR2## X.sub.2 is a single bond, ##STR3## A.sub.1, A.sub.2 and A.sub.3 are a single bond, aryl, heteroaryl, pyrimidyl or cyclohexyl, X.sub.4a, X.sub.5a, X.sub.4b, X.sub.5b, X.sub.4c and X.sub.5c are H, F, Cl, Br, --CH.sub.3, --CN or --CF.sub.3 ; and n is 0 or 1.
一个由以下结构表示的中间化合物:##STR1## 其中 R.sub.1 和 R.sub.2 是烷基;X.sub.1 和 X.sub.3 是单键,##STR2## X.sub.2 是单键,##STR3## A.sub.1、A.sub.2 和 A.sub.3 是单键,芳基,杂环芳基,嘧啶基或环己基,X.sub.4a、X.sub.5a、X.sub.4b、X.sub.5b、X.sub.4c 和 X.sub.5c 是 H、F、Cl、Br、--CH.sub.3、--CN 或 --CF.sub.3;n 为 0 或 1。