公开(公告)号：US5496500A

公开(公告)日：1996-03-05

申请号：US283714

申请日：1994-08-01

申请人： Kenneth J. Toyne ,  John W. Goodby ,  Alexander Seed ,  George W. Gray ,  Damien G. McDonnel ,  Edward P. Raynes ,  Sally E. Day ,  Kenneth J. Harrison ,  Michael Hird

发明人： Kenneth J. Toyne ,  John W. Goodby ,  Alexander Seed ,  George W. Gray ,  Damien G. McDonnel ,  Edward P. Raynes ,  Sally E. Day ,  Kenneth J. Harrison ,  Michael Hird

IPC分类号： C07C255/52 ,  C07C255/54 ,  C07C323/62 ,  C07C331/28 ,  C07D239/26 ,  C07D333/20 ,  C07D333/24 ,  C09K19/32 ,  C09K19/34 ,  C09K19/54 ,  C07D333/26 ,  G02F1/13

CPC分类号： C07D239/26 ,  C07C255/52 ,  C07C255/54 ,  C07C323/62 ,  C07C331/28 ,  C07D333/20 ,  C07D333/24 ,  C09K19/322 ,  C09K19/3441 ,  C09K19/3458 ,  C09K19/3461 ,  C09K19/3497 ,  C09K19/544 ,  Y10T428/10

摘要： Liquid crystal compounds of formula (I) are described, where formula (I) is given as R.sub.1 --A--(X.sub.m --(B).sub.n --R.sub.2 where A is selected from nathyl, flourinated naphthyl, brominated naphthyl, B is selected from phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl, thiophene, pyrimidine and pyridine, R.sub.1 and R.sub.2 are independently selected from alkyl, alkoxy, alkynyl, thioalkyl, Br, CN, SCN, NCS, perfluoroalkyl, perfluoroalkoxy and hydrogen, X is selected from C.tbd.C, COO and C.tbd.C, m is 0 or 1, n is 0 or 1 where m is 1 and n is 0 where m is 0; provided that where A is naphthyl, n is 1 and m is 0 then B is selected from methylated phenyl, brominated phenyl, thiophene, pyrimidine and pyridine; and further provided that where A is naphthyl, X is C.tbd.C, m is 1 and n is 1, then B is selected from thiophene, pyrimidine and pyridine. Also described are liquid crystal compounds suitable for inclusion in devices utilizing pretransitional characteristics of liquid crystalline materials in the isotropic phase and described by formula (II): R.sub.3 --J--(Y).sub.p --(Z).sub.q --R.sub. 4, where J is selected from nathyl, fluorinated naphthyl, brominated naphthyl, Z is selected from phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl, thiophene, pyrimidine and pyridine, R.sub.1 and R.sub.2 are independently selected from alkyl, alkoxy, alkynyl, thioalkyl, Br, CN, SCN, NCS, perfluoroalkyl, perfluoroalkoxy and hydrogen, Y is selected from C.dbd.C, COO and C.dbd.C, p is 0 or 1, q is 0 or 1 where p is 1 and q is 0 where p is 0.

摘要翻译： 描述了式（I）的液晶化合物，其中式（I）为R1-A-（Xm-（B）n-R2，其中A选自萘基，氟化萘基，溴化萘基，B选自苯基 ，甲基化苯基，溴化苯基，氟化苯基，噻吩，嘧啶和吡啶，R1和R2独立地选自烷基，烷氧基，炔基，硫代烷基，Br，CN，SCN，NCS，全氟烷基，全氟烷氧基和氢，X选自C 3，C，COO和C 3 B C，m为0或1，n为0或1，其中m为1，n为0，其中m为0;条件是其中A为萘基，n为1，m为0，B为 选自甲基化苯基，溴化苯基，噻吩，嘧啶和吡啶;并且进一步规定，其中A为萘基，X为C 3 C 10，m为1，n为1，则B为噻吩，嘧啶和吡啶。 是适于包含在利用液晶材料的预过滤特性的器件中的液晶化合物 各向同性相并由式（II）描述：R3-J-（Y）对（Z）qR 4，其中J选自萘基，氟化萘基，溴化萘基，Z选自苯基，甲基化苯基，溴化苯基 ，氟化苯基，噻吩，嘧啶和吡啶，R1和R2独立地选自烷基，烷氧基，炔基，硫代烷基，Br，CN，SCN，NCS，全氟烷基，全氟烷氧基和氢，Y选自C = C，COO和C = C，p为0或1，q为0或1，其中p为1，q为0，其中p为0。