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1.发明授权Liquid crystal compound with a 4-(optically active alkyl)-3-cyanophenyl group 失效具有4-（光学活性烷基）-3-氰基苯基的液晶化合物
公开(公告)号：US4913838A
公开(公告)日：1990-04-03
申请号：US168319
申请日：1988-03-18
IPC分类号： C07D213/84 , C07C67/00 , C07C253/00 , C07C253/14 , C07C255/50 , C07C255/55 , C07C255/57 , C07D213/06 , C07D213/55 , C07D213/61 , C07D213/65 , C07D237/08 , C07D237/14 , C07D237/24 , C07D239/26 , C07D239/28 , C07D239/34 , C09K19/06 , C09K19/12 , C09K19/20 , C09K19/30 , C09K19/34 , C09K19/42 , C09K19/44 , G02F1/13
CPC分类号： C09K19/2021 , C09K19/126 , C09K19/3003 , C09K19/3444 , C09K19/3455 , C09K19/3463
摘要： An optically active liquid crystal compound having specific features suitable to a display mode utilizing ferroelectric chiral smectic phases and particularly having a large spontaneous polarization value, and a chiral liquid crystal composition containing the compound are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 represents an alkyl group of 2 to 18 carbon atoms; R.sup.2 represents an alkyl group or alkoxy group each of 1 to 20 carbon atoms, hydrogen atom, a halogen atom or cyano group; A represents --COO-- or --OCO--; B and C each represent a single bond, ##STR2## wherein X represents hydrogen atom, a halogen atom or cyano group; and l, m and n each represent 0 or 1.
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公开(公告)号：US4818429A
公开(公告)日：1989-04-04
申请号：US95111
申请日：1987-09-11
IPC分类号： C07D237/08 , C07D237/14 , C09K19/34 , C09K19/42 , C07D237/00 , C07D237/02 , C09K19/52
CPC分类号： C07D237/14 , C09K19/3455
摘要： A compound useful as a component constituting ferroelectric liquid crystal display elements and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R represents a linear or branched chain alkyl group of 1 to 20 carbon atoms and R* represents an optically active alkyl group, alkoxy group, alkoxyalkyl group, alkoxyalkoxy group, alkanoyloxyalkyl group, alkanoyloxyalkoxy group, halogenated alkyl group or halogenated alkoxy group each of 2 to 20 carbon atoms.
摘要翻译： 提供了可用作构成铁电液晶显示元件的组分的化合物和含有该化合物的液晶组合物，该化合物由式（I）表示，其中R表示1至20的直链或支链烷基 碳原子，R *表示2〜20个碳原子的光学活性烷基，烷氧基，烷氧基烷基，烷氧基烷氧基，烷酰氧基烷基，烷酰氧基烷氧基，卤代烷基或卤代烷氧基。
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公开(公告)号：US4886622A
公开(公告)日：1989-12-12
申请号：US270865
申请日：1987-08-18
IPC分类号： C07C67/00 , C07C253/00 , C07C255/53 , C07C255/55 , C07C255/57 , C07D213/30 , C07D213/63 , C07D213/65 , C07D239/26 , C07D239/28 , C07D239/30 , C07D239/34 , C09K19/12 , C09K19/20 , C09K19/30 , C09K19/34 , C09K19/46 , G02F1/13
CPC分类号： C07D213/30 , C07C255/00 , C07D213/65 , C07D239/26 , C09K19/2021 , C09K19/3068 , C09K19/3444 , C09K19/3463
摘要： An optically liquid crystalline compound having an extremely large spontaneous polarization value and a chiral smectic liquid crystal composition containing the compound are provided, the compound being expressed by the formula ##STR1## wherein m represents an integer of 2 to 18; l represents an integer of 0 to 12; n represents 0 or 1; R represents an alkyl group or an alkoxy group each of 2 to 20 carbon atoms, a halogen atom or cyano group; and A and B each represent a single bond, ##STR2## wherein X represents hydrogen atom, a halogen atom or cyano group, and a chiral smectic liquid crystal composition containing at least one kind of the above compound.
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公开(公告)号：US4865763A
公开(公告)日：1989-09-12
申请号：US203150
申请日：1988-06-06
IPC分类号： C07D295/10 , C07D213/30 , C07D239/26 , C07D309/06 , C09K19/34 , C09K19/44 , C09K19/46 , G02F1/13
CPC分类号： C07D213/30 , C07D239/26 , C09K19/3463
摘要： A novel liquid crystalline, halogen-containing heterocyclic compound having a characteristic that even when its S.sub.c * phase is supercooled, no other smectic phases appear, and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R.sub.1 and R.sub.2 each represent an alkyl group of 2 to 18 carbon atoms; X represents --N.dbd. or --CH.dbd.; Y represents F or Cl; n represents an integer of 0 to 10; and a symbol * represents an asymmetric carbon atom.
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公开(公告)号：US4818430A
公开(公告)日：1989-04-04
申请号：US98932
申请日：1987-09-15
IPC分类号： C07D237/08 , C09K19/34 , C09K19/52 , C07D237/00 , C07D237/02
CPC分类号： C09K19/3455 , C07D237/08
摘要： A compound useful as a constituent of liquid crystal materials for ferroelectric liquid crystal display elements and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R represents a linear or branched chain alkyl group or alkoxy group each of 1 to 20 carbon atoms, R* represents an optically active group of 3 to 16 carbon atoms and X and Y each represent H or F.
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公开(公告)号：US4784792A
公开(公告)日：1988-11-15
申请号：US942626
申请日：1986-12-16
IPC分类号： C07D213/30 , C07D309/06 , C09K19/34 , C09K19/44 , C09K19/46 , C09K19/54 , G02F1/13 , C07D211/70
CPC分类号： C07D213/30 , C09K19/3444
摘要： A ferroelectric pyridine compound suitable as a liquid crystal for display mode utilizing ferroelectric properties and exhibiting SC* phase at a temperature somewhat higher than room temperature and a liquid crystal composition are provided, which compound is expressed by the formula ##STR1## wherein n represents an integer of 0 to 8, R.sub.1 represents an alkyl group of 2 to 18 carbon atoms, R.sub.2 represents an alkyl group of 1 to 18 carbon atoms and the symbol * indicates that C having the symbol attached thereon is an optically active carbon atom.
摘要翻译： 提供一种铁电吡啶化合物，其适用于利用铁电性能和在稍高于室温的温度下显示SC *相的显示模式的液晶和液晶组合物，该化合物由式（I）表示，其中式 n表示0〜8的整数，R1表示碳原子数2〜18的烷基，R2表示碳原子数为1〜18的烷基，符号*表示其上附有符号的C为光学活性碳原子 。
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公开(公告)号：US5055222A
公开(公告)日：1991-10-08
申请号：US408950
申请日：1989-09-18
CPC分类号： C09K19/126 , C09K19/3444 , C09K19/3463
摘要： An optically active compound exhibiting high speed response properties when used as a component of liquid crystal materials used in a liquid crystal display mode utilizing ferroelectricity, and a liquid crystal composition containing the compound are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 represents alkyl, alkoxy or alkoxycarbonyl each of 2 to 18 C, R.sup.2 represents alkyl of 3 to 18 C or alkoxy of 1 to 18 C and A represents a member selected from a group of two directly bonded six-membered rings having a halogen atom, cyano group, methyl group or trifluoromethyl group attached thereonto and * represents an unsymmetric carbon atom.
摘要翻译： 当用作利用铁电的液晶显示模式中使用的液晶材料的组分和含有该化合物的液晶组合物时，提供了具有高速响应特性的光学活性化合物，该化合物由下式表示：其中 R1表示2〜18个碳原子的烷基，烷氧基或烷氧基羰基，R2表示3〜18个碳原子的烷基或1〜18个C的烷氧基，A表示选自具有卤素原子的两个直接键合的六元环 ，氰基，甲基或三氟甲基，*表示不对称的碳原子。
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公开(公告)号：US4795587A
公开(公告)日：1989-01-03
申请号：US28689
申请日：1987-03-20
IPC分类号： C07D213/30 , C07D295/02 , C09K19/34 , C09K19/46 , G02F1/13 , C07D309/06
CPC分类号： C07D213/30 , C09K19/3444
摘要： A novel liquid crystal compound exhibiting SC phase which, when added to an optically active liquid crystal, makes the resulting chiral smectic liquid crystal material exhibit superior performances in liquid crystal display elements utilizing the ferroelectricity of the material, and a chiral smectic C composition using the compound, which compound is expressed by the formula ##STR1## wherein R.sup.1 l represents an alkyl group of 7 to 12 carbon atoms and R.sup.2 represents an alkyl group of 5 to 12 carbon atoms.
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公开(公告)号：US4765924A
公开(公告)日：1988-08-23
申请号：US3282
申请日：1987-01-14
IPC分类号： C07D295/10 , C07D213/30 , C07D239/26 , C07D309/06 , C09K19/34 , C09K19/44 , C09K19/46 , G02F1/13 , C07D211/70 , C07D239/02
CPC分类号： C07D213/30 , C07D239/26 , C09K19/3463
摘要： A novel liquid crystalline, halogen-containing heterocyclic compound having a characteristic that even when its S.sub.c * phase is supercooled, no other smectic phases appear, and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R.sub.1 and R.sub.2 each represent an alkyl group of 2 to 18 carbon atoms; X represents --N.dbd. or --CH.dbd.; Y represents F or Cl; n represents an integer of 0 to 10; and a symbol * represents an asymmetric carbon atom.
摘要翻译： 具有即使当其Sc *相过冷而不出现其他近晶相的特征的新型液晶含卤杂环化合物，并且提供含有其的液晶组合物时，该化合物由下式表示： （I）其中R1和R2各自表示2-18个碳原子的烷基; X表示-N =或-CH =; Y表示F或Cl; n表示0〜10的整数， 符号*表示不对称碳原子。
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10.发明授权
公开(公告)号：US4759869A
公开(公告)日：1988-07-26
申请号：US928295
申请日：1986-10-28
CPC分类号： C09K19/2021
摘要： A ferroelectric liquid crystal compound having superior properties and a chiral smectic liquid crystal composition are provided. The ferroelectric liquid crystal compound is expressed by the formula ##STR1## wherein R represents an alkyl group of 2-18 C; A, --COO-- or --OCO--; l and m each, 1 or 2 but l+m=2 or 3; n, an integer of 2-8; and symbol *, an asymmetric carbon atom.
摘要翻译： 提供具有优异性能和手性近晶液晶组合物的铁电液晶化合物。 铁电液晶化合物由式（I）表示，其中R表示2-18 C的烷基; A，-COO-或-OCO-; l和m分别为1或2，但l + m = 2或3; n，2-8的整数; 和符号*，不对称碳原子。
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