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    • 52. 发明授权
    • Liquid crystal compounds
    • 液晶化合物
    • US4704227A
    • 1987-11-03
    • US702281
    • 1985-02-15
    • Joachim KrauseAndreas WachtlerReinhard HittichGeorg WeberBernhard Scheuble
    • Joachim KrauseAndreas WachtlerReinhard HittichGeorg WeberBernhard Scheuble
    • C07D319/06C07D339/08C07D405/04C07D405/08C07D405/10C09K19/34C09K19/44C09K19/46C09K3/34C07D409/04G02F1/13
    • C07D405/04C07D319/06C07D339/08C07D405/08C07D405/10C09K19/3402C09K19/3441C09K19/3466C09K19/3491C09K2019/3422
    • Compounds of the formula IR.sup.1 --A.sup.1 --Z.sup.1 --A.sup.2 --R.sup.2 IwhereinR.sup.1 and R.sup.2 are each H, an alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl group with in each case 1-10 C atoms, F, Cl, Br, CN or R.sup.3 --A.sup.3 --Z.sup.2 --,A.sup.1 is --A--, --A.sup.4 --A--or --A--A.sup.4 --,A is a 1,3-dioxane-2,5-diyl or a 1,3-dithiane-2,5-diyl group,A.sup.2, A.sup.3 are each a 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl,and A.sup.4 1,3-dithiane-2,5-diyl, piperidine-1,4-diyl or 1,4-bicyclo(2,2,2)octylene group, or a 1,4-phenylene, pyrimidine-2,5-diyl or pyridazine-3,6-diyl group which is unsubstituted or substituted by one or two F and/or Cl atoms and/or CH.sub.3 groups and/or CN groups,Z.sup.1 and Z.sup.2 are each --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 O or a single bond andR.sup.3 is H, an alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl group with in each case 1-10 C atoms, F, Cl, Br or CN, with the proviso that(a) at least one group A.sup.2, A.sup.3 and/or A.sup.4 contains lateral substituents,(b) 1,3-dioxane-2,5-diyl and 1,3-dithiane-2,5-diyl groups are not substituted by alkoxy, alkanoyl, alkanoyloxy, alkoxycarbonyl, F, Cl, Br, CN or R.sup.3 --A.sup.3 --Z.sup.2 in the 2-position and piperidine-1,4-diyl groups are not substituted by these radicals in the 1-position,(c) Z.sup.1 is not --CH.sub.2 CH.sub.2 --if A.sup.1 is --A--and(d) Z.sup.1 is not --CO--O--if A.sup.1 is --A--A.sup.4 --and --A.sup.2 --R.sup.2 is 3-chloro-4-cyanophenyl and(e) all lateral substituents on pyrimidine-2,5-diyl and pyridazine-3,6-diyl groups are attached to C-atoms,can be used as components of liquid crystal phases.
    • 式ⅠR1-A1-Z1-A2-R2Ⅰ化合物,其中R1和R2各自为H,烷基,烷氧基,烷酰基,烷酰氧基或烷氧基羰基,在每种情况下为1-10个C原子,F,Cl,Br, CN或R3-A3-Z2-,A1为-A-,-A4-A-或-A-A4-,A为1,3-二恶烷-2,5-二基或1,3-二噻烷-2 ,5-二基,A2,A3分别为1,4-亚环己基,1,3-二恶烷-2,5-二基和A4 1,3-二噻烷-2,5-二基,哌啶-1,4-二基, 二(2,4-二)亚辛基或1,4-亚苯基,嘧啶-2,5-二基或哒嗪-3,6-二基,其未被取代或被1或2个取代 F和/或Cl原子和/或CH 3基团和/或CN基团,Z 1和Z 2各自为-CO-O-,-O-CO - , - CH 2 CH 2 - , - OCH 2 - , - CH 2 O或单键, 是烷基,烷氧基,烷酰基,烷酰氧基或烷氧基羰基,在每种情况下为1-10个C原子,F,Cl,Br或CN,条件是(a)至少一个基团A2,A3和/或A4 含有侧向取代基,(b)1,3-二恶烷-2,5-二基和1,3-二噻烷-2,5-二基不被烷氧基,烷氧基取代 2位的烷酰氧基,烷氧基羰基,F,Cl,Br,CN或R3-A3-Z2在1-位上不被这些基团取代,(c)Z1是 如果A1是-A,则不是-CH2CH2 - 如果A1是-A-A4,而(d)Z1不是-CO-O-,-A2-R2是3-氯-4-氰基苯基,(e)所有的侧取代基 嘧啶-2,5-二基和哒嗪-3,6-二基与C原子连接,可用作液晶相的成分。