公开(公告)号：EP0664825A1

公开(公告)日：1995-08-02

申请号：EP93922029.0

申请日：1993-10-08

申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S GOVERNMENT OF THE UNITED KINGDOM OF GREAT BRITAIN AND

发明人： GOODBY, John William ,  HIRD, Michael ,  TOYNE, Kenneth Johnson ,  SEED, Alexander John ,  McDONNEL, Damien Gerard ,  SAMRA, Amarjit Kaur

IPC分类号： C07D239 ,  C07C327 ,  C07C331 ,  C07D333 ,  C09K19

CPC分类号： C07C331/28 ,  C07C327/26 ,  C07C327/32 ,  C07C327/36 ,  C07D333/38 ,  C09K19/28 ,  C09K19/322 ,  C09K19/3491 ,  C09K19/3497

摘要： Novel liquid crystal compounds have been synthesized of general formula (I). These 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 (I): R?1-(Z1-A1)¿m-(Z?2)-A3-X-(Z3)-(A2-Z4)¿n-R2, wherein X is selected from (a), (b), (c); each of Z?1, Z2, Z3 and Z4¿ are independently selected from phenyl, substituted phenyl, where substitution is lateral substitution selected from F, Cl, Br, NO¿2?, CN, NCS; naphthalene, substituted naphthalene, where substitution is lateral substitution selected from F, Cl, Br, NO2, CN, NCS, CH3; thiophene, pyridine and pyrimidine; each of A?1 and A2¿ is independently selected from single bond, C=C, CH=CH; A3 is selected from C=C and single bond; each of R?1 and R2¿ are independently selected from CN, NCS, CH=C(CN)¿2?, C=C-CN, C=C-CF3, alkyl, alkoxy, thioalkyl, alkenyl, and alkynyl; m and n are independently selected from 1 and 0, and except where m and n are O, X is COS and each of R?1 and R2¿ are selected from alkyl and alkoxy, A3 is a single bond and each of Z?2 and Z3¿ is phenyl.