申请人:Merck Patent Gesellschaft Mit Beschrankter Haftung
公开号:US05250220A1
公开(公告)日:1993-10-05
Novel 2,5-disubstituted heterocyclic compounds of the formula I ##STR1## in which n is 1 to 10, Het is ##STR2## Ring A is trans-1,4-cyclohexylene or, in the case where Het= ##STR3## X=--OCF.sub.3 or --OCHF.sub.2 and/or Y=Z=F, is alternatively 1,4-phenylene, X is CN, F, Cl, --CF.sub.3, --OCF.sub.3 or --OCHF.sub.2, and Y and Z are each, independently of one another, H or F, can be used as components of liquid-crystalline media.
公式I中的新型2,5-二取代杂环化合物,其中n为1至10,Het为##STR2## Ring A为trans-1,4-环己基或者在Het=##STR3##的情况下,X=--OCF.sub.3或--OCHF.sub.2和/或Y=Z=F,或者是1,4-苯基,X为CN、F、Cl、--CF.sub.3、--OCF.sub.3或--OCHF.sub.2,Y和Z各自独立地为H或F,可以作为液晶介质的组分。