Phenylpyrimidine-based compounds and liquid crystal composition containing the same
申请人:AJINOMOTO CO., INC.
公开号:EP0225195A1
公开(公告)日:1987-06-10
A Phenylpyrimidine compound represents by the following general formula (1):
wherein R' represents a straight or branched C1-18 alkyl group, haloalkyl group, aralkyl group or haloaralkyl group with or without a chiral carbon, R2 represents a straight or branched alkyl group, haloalkyl group, aralkyl group or haloaralkyl group with or without at least one chiral carbon, a, b or c is one or more than one and a sum of a, b and c is two or more than two, A represents single bond, -O-, -COO-, -OCOO or OCO, B and C may be the same or different and selected from single bond, -COO-, -OCO-, -N=CH-, -CH=N-, -CH20-, -OCH2- or -CH=CH-, D represents single bond, -COOCH2-, -OCOO- or -OCO, X, Y and Z are 1,4-phenylene, 1,4-phenylene substituted with one or more than one halogen atom, cyano group or nitro group, 2,5- pyrimidine
in which case at least one of X, Y or Z is 2,5-pyrimidine
And a liquid crystal composition comprising at least one compound presented by the above formula (1).
The compound of the present invention is useful as an element of a liquid crystal composition, in which case if the compound does not show a smectic liquid crystal.
一种苯基嘧啶化合物由以下通式(1)表示:
其中 R'代表直链或支链 C1-18 烷基、卤代烷基、芳烷基或卤代芳烷基,带或不带一个手性碳;R2 代表直链或支链烷基、卤代烷基、芳烷基或卤代芳烷基,带或不带至少一个手性碳;a、b 或 c 为一个或一个以上,a、b 和 c 之和为两个或两个以上、A 代表单键、-O-、-COO-、-OCOO 或 OCO,B 和 C 可以相同或不同,且选自单键、-COO-、-OCO-、-N=CH-、-CH=N-、-CH20-、-OCH2- 或 -CH=CH-、D 代表单键、-COOCH2-、-OCOO- 或 -OCO, X、Y 和 Z 是 1,4-苯基、被一个或一个以上卤素原子、氰基或硝基取代的 1,4- 苯、2,5-嘧啶
在这种情况下,X、Y 或 Z 中至少有一个是 2,5-嘧啶
以及一种液晶组合物,其中包含至少一种由上式(1)表示的化合物。
本发明的化合物可作为液晶组合物的一种元素,在这种情况下,如果该化合物不显示出 平滑液晶。