Heterocyclically substituted ethanes and their use in liquid crystal materials and devices
申请人:Secretary of State for Defence
in Her Britannic Majesty's Gov.
of the United Kingdom of
Great Britain and Northern Ireland
公开号:EP0152697A1
公开(公告)日:1985-08-28
A heterocyclically substituted ethane having a formula:
wherein A represents a heterocyclic ring selected from a trans 2,5 disubstituted 1,3 dioxan ring and a 2,5 disubstituted 1,3-pyrimidine ring;
R, represents an alkyl group having from 1 to 15 carbon atoms and R2 represents a group selected from hydrogen, alkyl having from 1 to 15 carbon atoms and alkoxy having from 1 to 15 carbon atoms provided that where A is a trans 2,5 disubstituted 1,3 dioxan ring R2 is alkyl; and
Cy represents a trans-1,4 disubstituted cyclohexane ring.
一种杂环取代的乙烷,其式如下
其中 A 代表选自反式 2,5 二取代 1,3 二噁环和 2,5 二取代 1,3 嘧啶环的杂环;
R,代表具有 1 至 15 个碳原子的烷基,R2 代表选自氢、具有 1 至 15 个碳原子的烷基和具有 1 至 15 个碳原子的烷氧基的基团,条件是 A 为反式 2,5 二取代 1,3 二噁环,R2 为烷基;以及
Cy 代表反式-1,4 二取代环己烷环。