Mesomorphic compound for use in liquid crystal composition and liquid crystal device and display apparatus using same
申请人:CANON KABUSHIKI KAISHA
公开号:EP0462578A1
公开(公告)日:1991-12-27
A mesomorphic compound represented by the following formula [I]:
wherein R1 and R2 independently denote an alkyl group having 1-16 carbon atoms capable of having a substituent; Xi, X2, X3 and X4 independently denote a single bond, -0-,
A1, A2 and A3 independently denote
; X5 and X6 independently denote hydrogen atom, fluorine, chlorine, bromine, CH3, CN or CF3; n1 and n2 are 0 or 1, with provisos that (1) X2 cannot be a single bond when n1 is 0, (2) X3 cannot be a single bond when N2 is 1 and (3) at least one of X2 and X3 denotes
when both n1 and n2 is 0 and A2 denote
由下式[I]代表的中间体化合物:
其中 R1 和 R2 独立地表示具有 1-16 个碳原子的烷基,能够具有取代基;Xi、X2、X3 和 X4 独立地表示单键,-0-、
A1、A2 和 A3 独立地表示
X5 和 X6 独立地表示氢原子、氟、氯、溴、CH3、CN 或 CF3;n1 和 n2 为 0 或 1,但 (1) 当 n1 为 0 时,X2 不能为单键;(2) 当 N2 为 1 时,X3 不能为单键;(3) X2 和 X3 中至少有一个表示
当 n1 和 n2 均为 0 时,A2 表示