Cyclic hydrocarbon derivative and liquid crystal composition containing the same
    7.
    发明公开
    Cyclic hydrocarbon derivative and liquid crystal composition containing the same 失效
    Zyclisches Kohlenwasserstoffderivat sowie eine dieses enthaltendeFlüssigkristallzusammensetzung。

    公开(公告)号:EP0637623A1

    公开(公告)日:1995-02-08

    申请号:EP94111448.0

    申请日:1994-07-22

    摘要: A novel cyclic hydrocarbon derivative is disclosed, which is represented by formula (I):

    wherein Y¹ and Y² each independently represent a fluorine atom, a chlorine atom, a cyano group, a cyanato group (OCN), a thiocyanato group (SCN), a trifluoromethoxy group (OCF₃), a difluoromethoxy group (OCF₂H), a 2,2,2-trifluoroethoxy group (OCH₂CF₃), a trifluoromethyl group (CF₃), R, -OR, -COOR or -OCOR, wherein R represents an alkyl group having from 1 to 20 carbon atoms, an alkenyl group having from 2 to 20 carbon atoms or an alkoxylalkyl group having from 2 to 20 carbon atoms, provided that at least one of Y¹ and Y² represents R, -OR, -COOR or -OCOR; Z, Z¹, Z², Z³, and Z⁴ each independently represent a single bond, -CH₂CH₂-, -CH=CH-, -C≡C-, -COO-, -OCO-, -CH₂O-, -OCH₂-, -(CH₂)₄-, -(CH₂)₃-O- or -O-(CH₂)₃-; ring A represents a group of formula (II):

    wherein X¹, X², X³, X⁴, X⁵, X⁶, X⁷, X⁸, X⁹, and X¹⁰ each independently represent a hydrogen atom (H) or a deuterium atom (D), provided that at least one of them represents a deuterium atom (D); rings K, L, J, M and N each independently represent a trans-1,4-cyclohexylene group, a 1,4-cyclohexenylene group, a trans-1,4-cyclohexylene group substituted with 1 to 4 substituents selected from a fluorine atom and a cyano group, a 1,4-phenylene group, a 1,4-phenylene group substituted with 1 to 4 substituents selected from a fluorine atom, a chlorine atom, a cyano group and a methyl group, a 1,3-dioxane-2,6-diyl group, a pyrimidine-2,5-diyl group, a pyridine-2,5-diyl group, a pyrazine-2,5-diyl group or a group of formula (III):

    wherein X¹¹, X¹², X¹³, X¹⁴, X¹⁵, X¹⁶, X¹⁷, X¹⁸, X¹⁹, and X²⁰ each independently represent a hydrogen atom (H) or a deuterium atom (D), provided that at least one of them represents a deuterium atom (D); in which the ring of formula (III) may be the same or different with ring A; and k, l, m, and n each independently represent 0 or 1, provided that the sum of k, l, m, and n is 0, 1 or 2. The compound of the present invention is useful as an electro-optic liquid crystal display material.

    摘要翻译: 公开了由式(I)表示的新型环状烃衍生物:其中Y 1和Y 2各自独立地表示氟原子,氯原子,氰基,氰基(OCN) ),硫氰酸酯基(SCN),三氟甲氧基(OCF 3),二氟甲氧基(OCF2H),2,2,2-三氟乙氧基(OCH 2 CF 3),三氟甲基(CF 3),R,-OR,-COOR 或-OCOR,其中R表示具有1至20个碳原子的烷基,具有2至20个碳原子的烯基或具有2至20个碳原子的烷氧基烷基,条件是Y 1, 并且Y 2表示R,-OR,-COOR或-OCOR; Z,Z 1,Z 2,Z 3和Z 4各自独立地表示单键,-CH 2 CH 2 - , - CH = CH - , - C 1 - C 1 -C 30 - OCO - , - CH 2 O - , - OCH 2 - , - (CH 2)4 - , - (CH 2)3 -O-或-O-(CH 2) 环A表示式(II)的基团:其中X 1,X 2,X 3,X 4,X 5,X 6,X 7, X 8,X 9和X 1各自独立地表示氢原子(H)或氘原子(D),条件是它们中的至少一个表示氘原子(D)。 环K,L,J,M和N各自独立地表示反式-1,4-亚环己基,1,4-亚环己烯基,被1〜4个选自氟的取代基取代的反式-1,4-亚环己基 原子和氰基,1,4-亚苯基,被1〜4个选自氟原子,氯原子,氰基和甲基的取代基取代的1,4-亚苯基, 二恶烷-2,6-二基,嘧啶-2,5-二基,吡啶-2,5-二基,吡嗪-2,5-二基或式(III)的基团: 其中X 1,X 1,X 1,X 1,X 4,X 1,X 1,X 6,X X 1,X 1,X 1,9和X 2各自独立地表示氢原子(H)或氘原子(D),条件是 其中至少一个表示氘原子(D); 其中式(III)的环可以与环A相同或不同; 并且k,l,m和n各自独立地表示0或1,条件是k,l,m和n的和为0,1或2.本发明的化合物可用作电光液体 水晶显示材料。

    Novel lactic acid derivatives and liquid crystal compositions containing the same
    8.
    发明公开
    Novel lactic acid derivatives and liquid crystal compositions containing the same 失效
    MilchsäurederivatundFlüssigkristallzusammensetzungmit diesem Derivat。

    公开(公告)号:EP0329153A2

    公开(公告)日:1989-08-23

    申请号:EP89102756.7

    申请日:1989-02-17

    CPC分类号: C09K19/126 C09K19/2021

    摘要: compound represented by formula (I):
    wherein R 1 represents an alkyl group having from 1 to 18 carbon atoms; R 2 represents an alkyl group having from 2 to 16 carbon atoms; rings A, B, C, and D each represents a 1,4-phenylene group or a 1,4-phenylene group having one or two halogen atoms; Y represents a single bond,
    m and n each represents 0 or 1; p represents 0, 1, or 2; q represents 0 or an integer of from 1 to 6; and C * and C" each represents an asymmetric carbon atom in an (S)- or (R)-configuration, and a liquid crystal composition containing the compound of formula (I). The compound of formula (I) is a chiral liquid crystal compound exhibiting large spontaneous polarization, a long helical pitch, an SC * phase in a broad temperature range including room temperature, satisfactory orientation, and a high rate of response.

    摘要翻译: 由式(I)表示的化合物:其中R 1表示具有1至18个碳原子的烷基; R2表示具有2至16个碳原子的烷基; 环A,B,C和D各自表示具有一个或两个卤素原子的1,4-亚苯基或1,4-亚苯基; Y表示单键, - @ -O-或-O- m和n各自表示0或1; p表示0,1或2; q表示0或1至6的整数; 和C *和C **分别表示(S) - 或(R) - 构型中的不对称碳原子,和含有式(I)化合物的液晶组合物。 式(I)化合物是在包括室温,令人满意的取向和高反应率的宽温度范围内表现出大的自发极化,长螺距,SC *相的手性液晶化合物。