申请人:Merck Patent Gesellschaft mit beschrankter Haftung
公开号:US04734522A1
公开(公告)日:1988-03-29
Six-membered ring compounds of the formula I ##STR1## wherein A is a benzene or cyclohexane ring, X.sup.1 to X.sup.6 independently of one another in each case are H, --OR, --COOR, --SR, --SOR, --SO.sub.2 R or, if A is a cyclohexane ring, also --O--COR, and R is in each case an alkyl group which has up to 15 C atoms and in which one or two CH.sub.2 groups can be replaced by O atoms, at least three of the substituents X.sup.1 to X.sup.6 being other than H, can be used as constituents of discotic liquid-crystal phases for liquid-crystal display elements.
式I的六元环化合物,其中A是苯环或环己烷环,X^1至X^6在每种情况下独立地为H,-OR,-COOR,-SR,-SOR,-SO2R或,如果A是环己烷环,则还为-O-COR,而R在每种情况下为一个碳原子数最多为15的烷基基团,其中一个或两个CH2基团可以被O原子取代,至少三个取代基X^1至X^6不是H,可用作液晶显示元件的圆盘状液晶相的组分。