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1. 发明授权

US4783280A Liquid crystal mixture 失效
标题翻译：液晶混合物
公开(公告)号：US4783280A
公开(公告)日：1988-11-08
申请号：US53601
申请日：1987-05-20
申请人： Martin Petrzilka , Martin Schadt , Alois Villiger
发明人： Martin Petrzilka , Martin Schadt , Alois Villiger
IPC分类号： C09K19/02 , C09K19/42 , G02F1/13 , C09K19/12 , C09K19/30 , C09K19/34
CPC分类号： C09K19/42 , C09K19/02
摘要： There is described a liquid crystalline mixture for electro-optical devices which are operated according to the two-frequency matrix addressing procedure. The mixture consists of three components A, B and C, each of which contains one or more compounds. Component A has a viscosity of at most about 40 cp, a clearing point of at least about 40.degree. C. and a dielectric anisotropy between about -2 and about +1. Component B has a dielectric anisotropy below about -2 both above and below the cross-over frequency of the total mixture and component C has a dielectric anisotropy above about +10, a clearing point of at least about 100.degree. C. and there is a cross-over frequency in the total mixture of at most about 15 kHz at 20.degree. C. Novel compounds for such mixtures and their manufacture and use are also described. The novel mixtures make possible especially high multiplex rates and short response times.
摘要翻译：描述了根据双频矩阵寻址过程操作的用于电光器件的液晶混合物。该混合物由三种组分A，B和C组成，每种组分含有一种或多种化合物。组分A具有至多约40cp的粘度，至少约40℃的透明点和约-2至约+1的介电各向异性。组分B在总混合物的交叉频率之上和之下具有低于约-2的介电各向异性，组分C具有高于约+ 10的介电各向异性，至少约100℃的透明点，并且存在在20℃下最多约15kHz的总混合物中的交叉频率也用于这种混合物的新型化合物及其制备和用途。这种新型混合物使得多种复合速率和响应时间短。

2. 发明授权

US4460770A Liquid crystal mixture 失效
标题翻译：液晶混合物
公开(公告)号：US4460770A
公开(公告)日：1984-07-17
申请号：US387108
申请日：1982-06-10
申请人： Martin Petrzilka , Martin Schadt , Alois Villiger
发明人： Martin Petrzilka , Martin Schadt , Alois Villiger
IPC分类号： C09K19/02 , C09K19/42 , C09K3/34 , C07C121/60 , C07D239/60 , G02F1/13 , G09F9/35
CPC分类号： C09K19/42 , C09K19/02
摘要： There is described a liquid crystalline mixture for electro-optical devices which are operated according to the two-frequency matrix addressing procedure. The mixture consists of three components A, B and C, each of which contains one or more compounds. Component A has a viscosity of at most about 40 cp, a clearing point of at least about 40.degree. C. and a dielectric anisotropy between about -2 and about +1. Component B has a dielectric anisotropy below about -2 and component C has a dielectric anisotropy above about +10, a clearing point of at least about 100.degree. C. and there is a cross-over frequency in the total mixture of at most about 15 kHz at 20.degree. C.Novel compounds for such mixtures and their manufacture and use are also described.The novel mixtures make possible especially high multiplex rates and short response times.
摘要翻译：描述了根据双频矩阵寻址过程操作的用于电光器件的液晶混合物。该混合物由三种组分A，B和C组成，每种组分含有一种或多种化合物。组分A具有至多约40cp的粘度，至少约40℃的透明点和约-2至约+1的介电各向异性。组分B具有低于约-2的介电各向异性，组分C具有高于约+ 10的介电各向异性，至少约100℃的透明点，并且总混合物中的交叉频率最多为约15 在20℃下，还描述了用于这种混合物的新型化合物及其制备和用途。这种新型混合物使得多种复合速率和响应时间短。

3. 发明授权

US4915480A Liquid crystalline compounds and mixtures 失效
标题翻译：液晶化合物和混合物
公开(公告)号：US4915480A
公开(公告)日：1990-04-10
申请号：US218752
申请日：1988-07-13
申请人： Martin Petrzilka , Martin Schadt , Alois Villiger
发明人： Martin Petrzilka , Martin Schadt , Alois Villiger
IPC分类号： C07C45/59 , C07C67/00 , C07C325/00 , C07C331/28 , C07D239/26 , C07D303/46 , C07D317/72 , C07D319/06 , C07D319/12 , C09K19/12 , C09K19/30 , C09K19/34 , C09K19/44 , C09K19/46 , G02F1/13 , G09F9/35
CPC分类号： C07D317/72 , C07C331/28 , C07C45/59 , C07D303/46 , C07D319/12 , C09K19/12 , C09K19/3001 , C09K19/3402 , C09K19/3469 , C07C2101/14 , C09K2019/3422
摘要： This invention concerns compounds of the formula: ##STR1## wherein X is a single covalent bond, --CH.sub.2 CH.sub.2 --, 1,4-phenylene, a 2,5-disubstituted pyrimidine ring or a group of the formula: ##STR2## ring A is trans-1,4-cyclohexylene or, when X is a single covalent bond, ring A may also be 1,4-phenylene, a 2,5-disubstituted pyrimidine ring or a trans-2,5-disubstituted m-dioxane ring; andR.sup.1 is straight-chain trans-1-alkenyl having 2 to 12 carbon atoms or straight-chain trans-3-alkenyl having 4 to 12 carbon atoms or, when X is --CH.sub.2 CH.sub.2 --, R.sup.1 may also be 1,4-phenylene, a 2,5-disubstituted pyrimidine ring or a group of formula IA or when ring A is a 2,5-disubstituted pyrimidine ring or a trans-2, 5-disubstituted m-dioxane ring, R.sup.1 may also be straight-chain alkyl with 1 to 12 carbon atoms; and one of the benzene rings may have a lateral fluorine substituent;their manufacture, and liquid crystalline mixtures and electro-optical devices containing same.
摘要翻译：本发明涉及下式的化合物：其中X是单个共价键，-CH 2 CH 2 - ，1,4-亚苯基，2,5-二取代的嘧啶环或下式的基团： A是反式-1,4-亚环己基，或者当X是单个共价键时，环A也可以是1,4-亚苯基，2,5-二取代的嘧啶环或反式-2,5-二取代的间二氧杂环己烷环; 并且R 1是具有2至12个碳原子的直链反式-1-链烯基或具有4至12个碳原子的直链反式-3-烯基，或者当X是-CH 2 CH 2 - 时，R 1也可以是1,4-亚苯基，2,5-二取代的嘧啶环或式IA的基团，或者当环A是2,5-二取代的嘧啶环或反式-2,5-二取代的间二恶烷环时，R 1也可以是直链烷基具有1至12个碳原子; 苯环中的一个可以具有侧氟取代基; 它们的制造，以及含有它们的液晶混合物和电光装置。

4. 发明授权

US4708441A Esters 失效
标题翻译：酯类
公开(公告)号：US4708441A
公开(公告)日：1987-11-24
申请号：US766318
申请日：1985-08-16
申请人： Martin Petrzilka , Martin Schadt , Alois Villiger
发明人： Martin Petrzilka , Martin Schadt , Alois Villiger
IPC分类号： C07C29/147 , C07C31/135 , C07C61/12 , C07C61/39 , C07C63/49 , C07C63/72 , C07C69/773 , C07C69/90 , C07C205/39 , C07C205/43 , C07C255/34 , C07C255/50 , C07C255/51 , C09K19/00 , C09K19/20 , C09K19/30 , G02F1/13 , C07C79/26 , C07C121/52 , C09K19/12
CPC分类号： C07C255/00 , C07C205/43 , C07C29/147 , C07C309/00 , C07C31/1355 , C07C61/12 , C07C61/39 , C07C63/49 , C07C63/72 , C09K19/2007 , C09K19/3068 , C07B2200/09 , C07C2101/14
摘要： Compounds of the formula ##STR1## wherein X.sup.2 is a single covalent bond or --COO--; X.sup.1 is a single covalent bond, --COO--, --CH.sub.2 CH.sub.2 -- or when X.sup.2 is --COO--, X.sup.1 also can be p--C.sub.6 H.sub.4 --, p--C.sub.6 H.sub.4 --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 --p--C.sub.6 H.sub.4, p--C.sub.6 H.sub.4 --COO-- or --COO--p--C.sub.6 H.sub.4 ; ring A is a benzene ring or trans-1,4-cyclohexylene; ring B is a benzene ring or when X.sup.2 is --COO-- and X.sup.1 is a single covalent bond, --COO-- or --CH.sub.2 CH.sub.2 --, ring B also can be trans-1,4-cyclohexylene; Z.sup.1, Z.sup.2 and Z.sup.3 individually are hydrogen or when positioned on a benzene ring which is not linked directly with a further ring via a single covalent bond, Z.sup.1, Z.sup.2 and Z.sup.3 also can be halogen, cyano or methyl; Y.sup.2 is cyano, nitro, 2,2-dicyanovinyl or when Y.sup.1 is hydrogen Y.sup.2 also can be 2,2-dicyano-1-methylvinyl; Y.sup.1 is halogen, cyano, C.sub.1 -C.sub.3 -alkyl or, when X.sup.1 includes a benzene ring of --COO-- or Y.sup.2 is nitro or at least one of Z.sup.1 and Z.sup.2 is other than hydrogen, Y.sup.1 also can be hydrogen; and R.sup.1 is C.sub.1 -C.sub.12 -alkyl or when positioned on a benzene ring R.sup.1 also can be C.sub.1 -C.sub.12 -alkoxy, their manufacture and use in liquid crystalline mixtures are described.
摘要翻译：其中X 2是单个共价键或-COO-; X 1是单个共价键，-COO - ， - CH 2 CH 2 - 或当X 2是-COO-时，X 1也可以是对-C 6 H 4 - ，p-C 6 H 4 -CH 2 CH 2 - ， - CH 2 CH 2-p-C 6 H 4，p-C 6 H 4 -CO 2 - 或-COO-p-C6H4; 环A是苯环或反式-1,4-亚环己基; 环B为苯环，或者当X2为-COO-且X1为单一共价键时，可以为-COO-或-CH2CH2-，环B也可为反式-1,4-亚环己基; Z1，Z2和Z3分别为氢或当位于不与另一个环通过单个共价键直接连接的苯环上时，Z 1，Z 2和Z 3也可以是卤素，氰基或甲基; Y2是氰基，硝基，2,2-二氰基乙烯基或当Y1是氢时，Y2也可以是2,2-二氰基-1-甲基乙烯基; Y1是卤素，氰基，C1-C3-烷基，或当X1包括-COO-或Y2的苯环是硝基或Z1和Z2中的至少一个不是氢时，Y1也可以是氢; R1为C1-C12烷基，或者当位于苯环R1上时，也可以是C1-C12-烷氧基，它们在液晶混合物中的制备和应用被描述。

5. 发明授权

US4980486A Liquid crystalline compounds and mixtures 失效
标题翻译：液晶化合物和混合物
公开(公告)号：US4980486A
公开(公告)日：1990-12-25
申请号：US36132
申请日：1987-04-03
申请人： Martin Petrzilka , Martin Schadt , Alois Villiger
发明人： Martin Petrzilka , Martin Schadt , Alois Villiger
IPC分类号： C07C45/59 , C07C67/00 , C07C325/00 , C07C331/28 , C07D239/26 , C07D303/46 , C07D317/72 , C07D319/06 , C07D319/12 , C09K19/12 , C09K19/30 , C09K19/34 , C09K19/44 , C09K19/46 , G02F1/13 , G09F9/35
CPC分类号： C07D317/72 , C07C331/28 , C07C45/59 , C07D303/46 , C07D319/12 , C09K19/12 , C09K19/3001 , C09K19/3402 , C09K19/3469 , C07C2101/14 , C09K2019/3422
摘要： This invention concerns compounds of the formula: ##STR1## wherein X is a single covalent bond, --CH.sub.2 CH.sub.2 --, 1,4-phenylene, a 2,5-disubstituted pyrimidine ring or a group of the formula: ##STR2## ring A is trans-1,4-cyclohexylene or, when X is a single covalent bond, ring A may also be 1,4-phenylene, a 2,5-disubstituted pyrimidine ring or a trans-2,5-disubstituted m-dioxane ring; andR.sup.1 is straight-chain trans-1-alkenyl having 2 to 12 carbon atoms or straight-chain trans-3-alkenyl having 4 to 12 carbon atoms or, when X is --CH.sub.2 CH.sub.2 --, R.sup.1 may also be 1,4-phenylene, a 2,5-disubstituted pyrimidine ring or a group of formula IA or when ring A is a 2,5-disubstituted pyrimidine ring of a trans-2,5-disubstituted m-dioxane ring, R.sup.1 may also be straight-chain alkyl with 1 to 12 carbon atoms; and one of the benzene rings may have a lateral fluorine substituent;their manufacture, and liquid crystalline mixtures and electro-optical device containing same.

6. 发明授权

US4550981A Liquid crystalline esters and mixtures 失效
标题翻译：液晶酯和混合物
公开(公告)号：US4550981A
公开(公告)日：1985-11-05
申请号：US530830
申请日：1983-09-09
申请人： Martin Petrzilka , Martin Schadt , Alois Villiger
发明人： Martin Petrzilka , Martin Schadt , Alois Villiger
IPC分类号： C07C29/147 , C07C31/135 , C07C61/12 , C07C61/39 , C07C63/49 , C07C63/72 , C07C69/773 , C07C69/90 , C07C205/39 , C07C205/43 , C07C255/34 , C07C255/50 , C07C255/51 , C09K19/00 , C09K19/20 , C09K19/30 , G02F1/13 , C07C79/26 , C07C121/52
CPC分类号： C07C255/00 , C07C205/43 , C07C29/147 , C07C309/00 , C07C31/1355 , C07C61/12 , C07C61/39 , C07C63/49 , C07C63/72 , C09K19/2007 , C09K19/3068 , C07B2200/09 , C07C2101/14
摘要： Compounds of the formula ##STR1## wherein X.sup.2 is a single covalent bond or --COO--; X.sup.1 is a single covalent bond, --COO--, --CH.sub.2 CH.sub.2 -- or when X.sup.2 is --COO--, X.sup.1 also can be p--C.sub.6 H.sub.4 --, p--C.sub.6 H.sub.4 --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 --p--C.sub.6 H.sub.4, p--C.sub.6 H.sub.4 --COO-- or --COO--p--C.sub.6 H.sub.4 ; ring A is a benzene ring or trans-1,4-cyclohexylene; ring B is a benzene ring or when X.sup.2 is --COO-- and X.sup.1 is a single covalent bond, --COO-- or --CH.sub.2 CH.sub.2 --, ring B also can be trans-1,4-cyclohexylene; Z.sup.1, Z.sup.2 and Z.sup.3 individually are hydrogen or when positioned on a benzene ring which is not linked directly with a further ring via a single covalent bond, Z.sup.1, Z.sup.2 and Z.sup.3 also can be halogen, cyano or methyl; Y.sup.2 is cyano, nitro, 2,2-dicyanovinyl or when Y.sup.1 is hydrogen Y.sup.2 also can be 2,2-dicyano-1-methylvinyl; Y.sup.1 is halogen, cyano, C.sub.1 -C.sub.3 -alkyl or, when X.sup.1 includes a benzene ring or --COO-- or Y.sup.2 is nitro or at least one of Z.sup.1 and Z.sup.2 is other than hydrogen, Y.sup.1 also can be hydrogen; and R.sup.1 is C.sub.1 -C.sub.12 -alkyl or when positioned on a benzene ring R.sup.1 also can be C.sub.1 -C.sub.12 -alkoxy, their manufacture and use in liquid crystalline mixtures are described.
摘要翻译：其中X 2是单个共价键或-COO-; X 1是单个共价键，-COO - ， - CH 2 CH 2 - 或当X 2是-COO-时，X 1也可以是对-C 6 H 4 - ，p-C 6 H 4 -CH 2 CH 2 - ， - CH 2 CH 2-p-C 6 H 4，p-C 6 H 4 -CO 2 - 或-COO-p-C6H4; 环A是苯环或反式-1,4-亚环己基; 环B为苯环，或者当X2为-COO-且X1为单一共价键时，可以为-COO-或-CH2CH2-，环B也可为反式-1,4-亚环己基; Z1，Z2和Z3分别为氢或当位于不与另一个环通过单个共价键直接连接的苯环上时，Z 1，Z 2和Z 3也可以是卤素，氰基或甲基; Y2是氰基，硝基，2,2-二氰基乙烯基或当Y1是氢时，Y2也可以是2,2-二氰基-1-甲基乙烯基; Y1是卤素，氰基，C1-C3-烷基，或当X1包括苯环或-COO-或Y2是硝基或Z1和Z2中的至少一个不是氢时，Y1也可以是氢; R1为C1-C12烷基，或者当位于苯环R1上时，也可以是C1-C12-烷氧基，它们在液晶混合物中的制备和应用被描述。

7. 发明授权

US4526704A Multiring liquid crystal esters 失效
标题翻译：多种液晶酯
公开(公告)号：US4526704A
公开(公告)日：1985-07-02
申请号：US512846
申请日：1983-07-11
申请人： Martin Petrzilka , Martin Schadt , Alois Villiger
发明人： Martin Petrzilka , Martin Schadt , Alois Villiger
IPC分类号： C07C69/773 , C09K19/20 , C09K19/30 , C09K19/44 , C09K3/34 , C07C69/78 , G02F1/13
CPC分类号： C09K19/2007 , C09K19/3068 , C09K19/44
摘要： Compounds of the formula ##STR1## wherein n is 0 or 1; one of X.sup.1 and X.sup.2 is --COO-- or --OOC-- and the other is a single covalent bond or --CH.sub.2 CH.sub.2 --; X.sup.3 and X.sup.4 individually are a single covalent bond or --CH.sub.2 CH.sub.2 --, with the proviso that at most one of X.sup.1, X.sup.2, X.sup.3 and X.sup.4 is --CH.sub.2 CH.sub.2 --; rings A.sup.1 and A.sup.5 individually are a group of the formula ##STR2## or trans-1,4-cyclohexylene; rings A.sup.2, A.sup.3 and A.sup.4 individually are a group of formula II or, when ring A.sup.2, A.sup.3 or A.sup.4 is not linked with at least one of the other two of these rings by a single covalent bond then such ring also can be trans-1,4-cyclohexylene, with the proviso that at least one of rings A.sup.1 through A.sup.5 is a group of formula II; Y is hydrogen, or when Y is attached to a ring of formula II which is not linked with another ring via a single covalent bond, Y also can be fluorine, chlorine or methyl; and R.sup.1 and R.sup.2 individually are straight-chain alkyl of 1-7 carbon atoms, or when R.sup.1 or R.sup.2 is attached to a ring of formula II such R.sup.1 or R.sup.2 also can be straight-chain alkoxy of 1 to 7 carbon atoms;their manufacture and use for electro-optical and chromatographical purposes and liquid crystalline mixtures containing these compounds are described.
摘要翻译：式（Ⅰ）化合物其中n为0或1; X1和X2之一是-COO-或-OOC-，另一个是单个共价键或-CH 2 CH 2 - ; X 3和X 4分别是单个共价键或-CH 2 CH 2 - ，条件是X 1，X 2，X 3和X 4中至多一个是-CH 2 CH 2 - ; 环A1和A5分别是式II或反式-1,4-亚环己基的基团; 环A2，A3和A4分别是式II的基团，或者当环A2，A3或A4不与单个共价键中的至少一个这些环中的至少一个连接时，该环也可以是反式-1 ，4-环己烯基，条件是环A1至A5中的至少一个是式II的基团; Y是氢，或当Y连接到通过单个共价键不与另一个环连接的式II的环时，Y也可以是氟，氯或甲基; R1和R2分别为1-7个碳原子的直链烷基，或当R1或R2连接到式II的环上时，R 1或R 2也可以是1至7个碳原子的直链烷氧基; 描述了其用于电光学和色谱目的的制造和用途以及含有这些化合物的液晶混合物。

8. 发明授权

US5447658A Tricyclic fluorobenzonitrile derivatives 失效
标题翻译：三环氟苄腈衍生物
公开(公告)号：US5447658A
公开(公告)日：1995-09-05
申请号：US261625
申请日：1994-06-17
申请人： Richard Buchecker , Teodor Lukac , Martin Schadt , Haruyoshi Takatsu , Alois Villiger
发明人： Richard Buchecker , Teodor Lukac , Martin Schadt , Haruyoshi Takatsu , Alois Villiger
IPC分类号： C07D319/06 , C09K19/34 , C09K19/42
CPC分类号： C09K19/3402 , C07D319/06 , C09K2019/3422
摘要： Compounds of the general formula ##STR1## wherein R.sup.1 represents vinyl or straight-chain alkenyl with 3 to 7 carbon atoms,the manufacture of such compounds, liquid crystalline mixtures which contain such compounds as well as the use of such compounds for electro-optical purposes.
摘要翻译：通式为其中R1表示乙烯基或具有3-7个碳原子的直链烯基的化合物，这些化合物的制造，含有这些化合物的液晶混合物以及这种化合物用于电光学目的

9. 发明授权

US5447657A Liquid crystal compounds 失效
标题翻译：液晶化合物
公开(公告)号：US5447657A
公开(公告)日：1995-09-05
申请号：US208165
申请日：1994-03-08
申请人： Martin Schadt , Alois Villiger
发明人： Martin Schadt , Alois Villiger
IPC分类号： C07C22/08 , C07C25/18 , C07C25/24 , C07C43/225 , C07C45/51 , C07C45/59 , C07C47/24 , C07C47/457 , C07C49/697 , C07D213/26 , C07D213/30 , C07D239/02 , C07D239/26 , C07D239/30 , C07D317/72 , C07D319/06 , C07D405/06 , C09K19/12 , C09K19/30 , C09K19/34 , C09K19/52 , G02F1/13
CPC分类号： C07D213/30 , C07C17/2635 , C07C17/266 , C07C25/24 , C07C403/02 , C07C43/225 , C07C45/513 , C07C45/59 , C07C47/24 , C07C47/457 , C07C49/697 , C07D213/26 , C07D239/26 , C07D319/06 , C07D405/06 , C09K19/12 , C09K19/3059 , C09K19/3402 , C09K19/3444 , C09K19/3461 , C09K19/3469 , C07B2200/09 , C07C2101/14 , C09K2019/3422
摘要： The present invention provides compounds of the general formula: ##STR1## wherein R is an alkyl group with 1 to 12 carbon atoms or a group of the formula ##STR2## Ring A.sup.1 is 1,4-phenylene, which is unsubstituted or substituted with fluorine, pyridine-2,5-diyl or pyrimidine-2,5-diyl;Ring A.sup.2 is trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl;R.sup.1 is an alkyl, alkenyl or alkoxyalkyl group with 1 to 12 and, respectively, 2 to 12 carbon atoms;X.sup.1 is fluorine, chlorine, bromine, trifluoromethyl, trifluoromethoxy or difluoromethoxy; andX.sup.2, X.sup.3 each independently are hydrogen or fluorine.The invention is also concerned with liquid crystal mixtures which contain these compounds and with the use of these compounds and mixtures for electro-optical purposes.
摘要翻译：本发明提供以下通式的化合物：其中R是具有1至12个碳原子的烷基或下式的基团：环A 1是1,4-亚苯基，其未被取代或被氟取代，吡啶-2,5-二基或嘧啶-2,5-二基; 环A2是反式-1,4-亚环己基或反式-1,3-二恶烷-2,5-二基; R1是具有1至12个且分别具有2至12个碳原子的烷基，烯基或烷氧基烷基; X1是氟，氯，溴，三氟甲基，三氟甲氧基或二氟甲氧基; X2，X3各自独立地为氢或氟。本发明还涉及含有这些化合物和使用这些化合物和用于电光目的的混合物的液晶混合物。

10. 发明授权

US5292452A Alkenylcyclohexane liquid crystalline compounds 失效
标题翻译：烯基环己烷液晶化合物
公开(公告)号：US5292452A
公开(公告)日：1994-03-08
申请号：US747033
申请日：1991-08-19
申请人： Richard Buchecker , Alfred Germann , Martin Schadt , Alois Villiger
发明人： Richard Buchecker , Alfred Germann , Martin Schadt , Alois Villiger
IPC分类号： C07C25/18 , C07C25/24 , C07C45/51 , C07C45/59 , C07C45/64 , C07C45/78 , C07C47/457 , C07C49/697 , C07C49/747 , C07D213/26 , C07D239/26 , C09K19/30 , C09K19/34 , C09K19/42 , C09K19/44 , C09K19/46 , G02F1/13 , C07D211/72 , C07D239/00
CPC分类号： C07D239/26 , C07C25/24 , C07C45/513 , C07C45/59 , C07C45/64 , C07C45/78 , C07C47/457 , C07C49/697 , C07C49/747 , C07D213/26 , C09K19/3003 , C09K19/3028 , C09K19/3444 , C09K19/3469 , C07C2101/14
摘要： Compounds of the formula ##STR1## wherein Z.sup.1 denotes a single covalent bond or --CH.sub.2 Ch.sub.2 --; ring A.sup.1 represents 1,4-phenylene, pyrimidine-2,5-diyl, pyridine-2,5-diyl or, when Z.sup.1 stands for --CH.sub.2 CH.sub.2 --, also trans-1,4-cyclohexylene; X.sup.1 stands for fluorine or chlorine; X.sup.2 signifies fluorine, chlorine or hydrogen, with the proviso that X.sup.2 only signifies hydrogen when X.sup.1 is chlorine or when ring A.sup.1 signifies pyridine-2,5-diyl and Z.sup.1 signifies --CH.sub.2 CH.sub.2 --; and R.sup.1 signifies 1E-alkenyl with 2 to 12 carbon atoms,their manufacture, liquid crystalline mixtures which contain these compounds and their use for electro-optical purposes.
摘要翻译：其中Z 1表示单个共价键或-CH 2 CH 2 - 的式环A1表示1,4-亚苯基，嘧啶-2,5-二基，吡啶-2,5-二基，或当Z1代表-CH2CH2-时，也可以是反式-1,4-亚环己基; X1代表氟或氯; X2表示氟，氯或氢，条件是当X1是氯时，X2表示氢，或者当A1表示吡啶-2,5-二基，Z1表示-CH2CH2-时表示氢。并且R1表示具有2至12个碳原子的1E-烯基，它们的制造，含有这些化合物的液晶混合物及其用于电光目的。

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