Thio-ester compounds and mixtures and devices containing such compounds
    1.
    发明授权
    Thio-ester compounds and mixtures and devices containing such compounds 失效
    硫酯化合物和含有这些化合物的混合物和装置

    公开(公告)号:US5578242A

    公开(公告)日:1996-11-26

    申请号:US416737

    申请日:1995-04-12

    摘要: Liquid crystal compounds of the formula:R.sup.1 --Z.sup.1).sub.m --(Z.sup.2)--X--(Z.sup.3)--(Z.sup.4).sub.n --R.sup.2These compounds may be mixed with other liquid crystal compounds to give liquid crystal mixtures which may then be used in liquid crystal devices. In the formula X is COS, CSS and CSO; each of Z.sup.1, Z.sup.2, Z.sup.3, and Z.sup.4 are independently phenyl, substituted phenyl, where substitution is lateral substitution selected from F, Cl, Br, NO.sub.2, CN, NCS; naphthalene, substituted naphthalene, where substitution is lateral substitution selected from F, Cl, Br, NO.sub.2, CN, NCS, CH.sub.3 ; thiophene, pyridine and pyrimidine; each of A.sup.1 and A.sup.2 is independently selected from single bond, C.tbd.C, CH.dbd.CH; A.sup.3 is selected from C.tbd.C and single bond; each of R.sup.1 and R.sup.2 are independently selected from CN, NCS, CH.dbd.C(CN).sub.2, C.tbd.C--CN, C.tbd.C--CF.sub.3, alkyl, alkoxy, thioalkyl, alkenyl, and alkynyl; m and n are independently selected from 1 and 0, except where m and n are O, X is COS and each of R.sup.1 and R.sup.2 are selected from alkyl and alkoxy, A.sup.3 is a single bond and each of Z.sup.2 and Z.sup.3 is phenyl.

    摘要翻译: PCT No.PCT / GB93 / 02084第 371日期:1995年4月12日 102(e)日期1995年4月12日PCT提交1993年10月8日PCT公布。 第WO94 / 09085号公报 日期:1994年4月28日液晶化合物:R1-Z1)m-(Z2)-X-(Z3) - (Z4)n-R2这些化合物可与其他液晶化合物混合,得到液晶混合物 然后可以用于液晶装置。 在公式X中是COS,CSS和CSO; Z 1,Z 2,Z 3和Z 4各自独立地为苯基,取代的苯基,其中取代为选自F,Cl,Br,NO 2,CN,NCS的侧面取代基; 萘,取代萘,其中取代为选自F,Cl,Br,NO 2,CN,NCS,CH 3的侧面取代基; 噻吩,吡啶和嘧啶; A1和A2各自独立地选自单键,C 3BOND C,CH = CH; A3选自C 3BOND C和单键; R 1和R 2各自独立地选自CN,NCS,CH = C(CN)2,C 3BOND C-CN,C 3 Cic CF 3,烷基,烷氧基,硫代烷基,烯基和炔基; m和n独立地选自1和0,除了其中m和n是O,X是COS,并且R 1和R 2各自选自烷基和烷氧基,A 3是单键,Z 2和Z 3各自是苯基。