Liquidcrystalline cyclohexylbenzene derivatives their manufacturing and novel nematic admixtures containing same
    6.
    发明公开
    Liquidcrystalline cyclohexylbenzene derivatives their manufacturing and novel nematic admixtures containing same 失效
    液体环己烷衍生物他们的制造和新的含有相似物质的物质

    公开(公告)号:EP0272580A3

    公开(公告)日:1989-05-24

    申请号:EP87118518.7

    申请日:1987-12-14

    摘要: New compounds of the general formula I:
    wherein R¹ is a normal or branched alkyl chain H 2n+1 C n - or a normal or branched alkoxy group H 2n+1 C n O-, n being an integer number from 1 to 12; X is a bridging group from the set: -COO-, -OCO-, -CH₂O-, -OCH₂-, -COCH₂-, -CHOHCH₂-, -CH=CH-,-CH₂CH₂-, -CHClCH₂-, -CHCNCH₂-, -CHBrCH₂-, -CHFCH₂-, -CHOCH₃CH₂-; Y is a terminal group from the set: -NO₂, -NH₂, -NCS, -Cl, -Br, -F; the cyclohexane rings are trans-1,4-disubstituted ones and the benzene rings are 1,4-disubstituted ones, and besides one of them may contain sometimes additionally a fluorine atom in position 2 or 3, k and l are integer numbers from the set: 0, 1, 2 fulfilling the condition that k+1=2 or 3; besides, if X denotes the -COO- or -OCO- group, then k+1 also may assume the value of 1 , their manufacture and liquid crystalline admixture containing them and use for electro-optical devices as dielectrics are described.

    摘要翻译: 新的通式I化合物:其中R 1是正链或支链烷基链H 2n + 1Cn-或正构或支链烷氧基H 2n + C n O O-,n是1至12的整数; X是一个由-COO - , - OCO - , - CH 2 O-,-OCH 2 - , - COCH 2 - , - CHOHCH 2 - , - CH = CH - , - CH 2 CH 2 - , - CHClCH 2 - , - ,-CHBrCH 2 - , - CHFCH 2 - , - CHOCH 3 CH 2 - ; Y是以下基团的末端基团:-NO 2,-NH 2,-NCS,-Cl,-Br,-F; 环己烷环是反式-1,4-二取代的,苯环是1,4-二取代的环,其中一个可能有时另外含有位置2或3的氟原子,k和l是从 设定:0,1,2满足k + 1 = 2或3的条件; 此外,如果X表示-COO-或-OCO-基团,则k + 1也可以取值为1,其制造和含有它们的液晶混合物用作电光装置作为电介质。