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1.发明授权
公开(公告)号：US5032314A
公开(公告)日：1991-07-16
申请号：US152421
申请日：1988-02-04
IPC分类号： C07C43/205 , C07C41/00 , C07C43/225 , C07C67/00 , C07C69/003 , C07C69/24 , C07C69/76 , C07C69/773 , C07C69/94 , C07C69/96 , C07C253/00 , C07C255/50 , C07C255/54 , C07C255/56 , C07C255/57 , C07D239/26 , C07D239/28 , C09K19/20 , C09K19/30 , C09K19/34 , C09K19/46 , C09K19/54 , G02F1/13 , G02F1/137 , G02F1/141
CPC分类号： C07D239/26 , C07D239/28 , C09K19/20 , C09K19/2021 , C09K19/3066 , C09K19/3068 , C09K19/3444 , C09K19/3463
摘要： A compound capable of shortening the response time of liquid crystal display elements and a composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 represents a linear or branched chain alkyl group or alkoxy group, each of 1C-18C; Ar represents ##STR2## wherein X represents H, halogen atom, cyano group or methyl; A represents --COO-- or --CH.sub.2 O--; R.sup.2 represents a C.sub.1 -C.sub.18 alkyl, A C.sub.2 -C.sub.18 alkanoyl, a C.sub.3 -C.sub.18 alkoxycarbonyl or a C.sub.4 -C.sub.18 2-alkoxypropanoyl; C having a symbol * attached thereonto represents asymmetric carbon atom; and when R.sup.2 represents a linear chain alkyl and A represents --COO--, Ar is not ##STR3##
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公开(公告)号：US4900472A
公开(公告)日：1990-02-13
申请号：US260519
申请日：1988-10-20
IPC分类号： C07D239/26 , C09K19/34
CPC分类号： C07D239/26 , C09K19/3463
摘要： The present invention provides optically active compounds represented by the following general formula: ##STR1## liquid crystal compositions containing the compounds, and electro optical elements using the above compositions.The compounds of the present invention are optically active compounds having characteristics suited for a ferroelectric liquid crystal composition, especially having enough spontaneous polarization to realize quick response.
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3.发明授权
公开(公告)号：US4973426A
公开(公告)日：1990-11-27
申请号：US160279
申请日：1988-02-25
IPC分类号： C07D213/30 , C07D237/14 , C07D239/26 , C07D239/34 , C09K19/58
CPC分类号： C07D213/30 , C07D237/14 , C07D239/26 , C07D239/34 , C09K19/58 , C09K19/588
摘要： An optically active compound having particularly a specific feature of increasing spontaneous polarization value as one of important specific features for ferroelectric liquid crystal compositions, and a ferroelectric liquid crystal composition containing the compound are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 represents a linear or branched chain alkyl, alkoxy, alkanoyl, alkoxycarbonyl or alkoxycarbonyloxy each of 1 -15C, H, halogen or -CN; R.sup.2 represents an optically active group having 2-20 skeletal atoms, ##STR2## wherein X represents H, halogen or -CN; l represents an integer of 1-10; m is 0 or 1; and * indicates asymmetric C.
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4.发明授权Condensate of an optically active-4-(1-hydroxyethyl)biphenyl with an optically active organic acid 失效旋光-4-（1-羟基乙基）联苯与光学活性有机酸的缩合物
公开(公告)号：US4961875A
公开(公告)日：1990-10-09
申请号：US284118
申请日：1988-12-14
IPC分类号： C07C69/24 , C07C69/67 , C07C69/708 , C07C255/55 , C09K19/12 , C09K19/54 , G02F1/13
CPC分类号： C09K19/126 , C07C255/55
摘要： A liquid crystalline, optically active compound useful as a component of various liquid crystal compositions, a liquid crystal composition containing the same and a light switching element using the liquid crystal composition are provided, which liquid crystalline, optically active compound is expressed by the formula ##STR1## wherein R.sup.1 is 1-18C alkyl or alkoxy, R.sup.2 is 2-18C alkyl or 1-18C alkoxy, A is ##STR2## wherein X is halogen or CN, m is 0 to 12, and * indicates an asymmetric carbon atom.
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公开(公告)号：US4882084A
公开(公告)日：1989-11-21
申请号：US113763
申请日：1987-10-28
申请人： Kouji Ohno , Shinichi Saito , Kazutoshi Miyazawa , Makoto Ushioda , Hiromichi Inoue , Naoyuki Yoshida
发明人： Kouji Ohno , Shinichi Saito , Kazutoshi Miyazawa , Makoto Ushioda , Hiromichi Inoue , Naoyuki Yoshida
CPC分类号： C12P13/004 , C09K19/126 , C09K19/586 , C12P41/004 , C12P7/62
摘要： The optically active compounds of the formula: ##STR1## wherein R.sup.1 is an alkyl or an alkyloxy group having a carbon number of 1-18, R.sup.2 is an alkyl group having a carbon number of 1-18, and A is a biphenyl group or a biphenyl group having a halogen atom or a cyano group are provided.The optically active compounds are useful for liquid crystal elements, especially for components of ferroelectric liquid crystal mixtures inducing high value of spontaneous polarization.
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公开(公告)号：US4827052A
公开(公告)日：1989-05-02
申请号：US113765
申请日：1987-10-28
申请人： Kouji Ohno , Shinichi Saito , Kazutoshi Miyazawa , Makoto Ushioda , Hiromichi Inoue , Naoyuki Yoshida
发明人： Kouji Ohno , Shinichi Saito , Kazutoshi Miyazawa , Makoto Ushioda , Hiromichi Inoue , Naoyuki Yoshida
IPC分类号： C07C33/20 , C07C33/24 , C07C43/23 , C09K19/12 , C12P7/62 , C12P13/00 , C12P41/00 , C07C33/46
CPC分类号： C12P13/004 , C07C33/20 , C07C33/24 , C07C43/23 , C09K19/126 , C12P41/004 , C12P7/62
摘要： The present invention provided optically active alcohols represented by the general formula: ##STR1## wherein R.sup.1 indicates an alkyl or alkyloxy group having a carbon number of 1-18, and A indicates a phenyl or a biphenyl group; or a phenyl or biphenyl group having a halogen atom or a cyano group. The alcohols are intermediates of optically active materials useful for components of liquid crystal materials for liquid crystal display elements having quick response.
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7.发明授权Optically active 2-biphenylpyrimidine derivative and liquid crystal compositions containing same 失效具有相似性的光学活性的二联苯胺衍生物和液晶组合物
公开(公告)号：US5059340A
公开(公告)日：1991-10-22
申请号：US600996
申请日：1990-10-18
IPC分类号： C07D239/26 , C07D239/34 , C09K19/34
CPC分类号： C09K19/3458 , C07D239/26 , C07D239/34
摘要： An optically active compound having a large spontaneous polarization value and capable of affording a composition exhibiting a suitable ferroelectric liquid crystal temperature range and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein either one of R.sup.1 and R.sup.2 represents an alkyl group or an alkoxy group each of 1 to 20 carbon atoms and another thereof represents an optically active group.
摘要翻译： 提供具有大的自发极化值并且能够提供具有合适的铁电液晶温度范围的组合物的光学活性化合物和含有该组合物的液晶组合物，该化合物由式（I）表示，其中任一 R 1和R 2之一表示碳原子数为1〜20的烷基或烷氧基，另一个表示光学活性基团。
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公开(公告)号：US4906400A
公开(公告)日：1990-03-06
申请号：US200050
申请日：1988-05-27
申请人： Shinichi Saito , Kisei Kitano , Kazutoshi Miyazawa , Kouji Ohno , Hiromichi Inoue , Makoto Ushioda
发明人： Shinichi Saito , Kisei Kitano , Kazutoshi Miyazawa , Kouji Ohno , Hiromichi Inoue , Makoto Ushioda
IPC分类号： C07D239/34 , C09K19/34
CPC分类号： C09K19/3458 , C07D239/34
摘要： A novel smectic C liquid crystal compound useful as a component of ferroelectric liquid crystal materials capable of effecting high-speed response is provided, which compound is a smectic liquid crystalline 5-alkoxy-2-(4-alkylphenyl)pyrimidine compound expressed by the formula ##STR1## wherein R.sup.1 represents a linear alkyl group of 4 to 20 carbon atoms and R.sup.2 represents a linear alkyl group of 7 to 20 carbon atoms.
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公开(公告)号：US5120468A
公开(公告)日：1992-06-09
申请号：US563801
申请日：1990-08-06
IPC分类号： G02F1/137 , C07C41/00 , C07C43/205 , C07C43/225 , C07C43/23 , C07C45/00 , C07C49/83 , C07C49/84 , C07C67/00 , C07C69/035 , C07C69/157 , C07C69/24 , C07C69/94 , C07C253/00 , C07C255/40 , C07C255/41 , C07C255/54 , C07C255/57 , C07D213/30 , C07D237/08 , C07D237/14 , C07D239/26 , C07D239/34 , C07D241/12 , C09K19/02 , C09K19/12 , C09K19/30 , C09K19/34 , C09K19/42 , C09K19/44 , C09K19/54 , C09K19/58 , G02F1/13 , G02F1/141
CPC分类号： C07D213/30 , C07C43/2055 , C07C43/225 , C07D237/14 , C07D239/26 , C07D239/34 , C09K19/0225 , C09K19/126 , C09K19/3003 , C09K19/3441 , C09K19/3444 , C09K19/3455 , C09K19/3463 , C09K19/42 , C09K19/44 , C09K19/586 , Y02P20/55
摘要： A 2-substituted-alkyl ether having an optically active group and useful as a component of ferroelectric liquid crystal compositions and a liquid crystal composition containing the same are provided, which 2-substituted-alkyl ether is expressed by the formula ##STR1## wherein R.sup.1 represents a linear or branched chain alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl of 1 to 18 C; R.sup.2 represents a linear or branched alkyl of 2 to 15 C; ##STR2## each independently represents ##STR3## wherein Y represents cyano, halogen, methyl or methoxy; X represents --OR.sup.3, ##STR4## F, Cl or Br wherein R.sup.3 represents a linear or branched alkyl group of 1 to 10 C of H; and * indicates asymmetric C.
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公开(公告)号：US5080827A
公开(公告)日：1992-01-14
申请号：US572356
申请日：1990-08-24
IPC分类号： C07D213/84 , C07C41/00 , C07C43/18 , C07C43/184 , C07C43/192 , C07C43/20 , C07C43/205 , C07C43/21 , C07C43/225 , C07C67/00 , C07C69/003 , C07C69/02 , C07C69/16 , C07C69/68 , C07C69/708 , C07C253/00 , C07C255/46 , C07C255/54 , C07D213/30 , C07D213/61 , C07D213/65 , C07D237/08 , C07D237/14 , C07D239/26 , C07D239/34 , C09K19/12 , C09K19/30 , C09K19/34 , C09K19/44 , G02F1/13 , G02F1/137 , G02F1/141
CPC分类号： C07D213/30 , C07C43/2055 , C07D237/08 , C07D239/26 , C07D239/34 , C09K19/126 , C09K19/3003 , C09K19/3441 , C09K19/3444 , C09K19/3455 , C09K19/3463 , Y02P20/55
摘要： An optically active compound particularly useful as a component of liquid crystal compositions having a high response rate and a chiral liquid crystal composition containing the same are provided, which optically active compound is expressed by the formula (I) ##STR1## wherein R.sup.1 represents alkyl or alkoxy each of 1-20 C, H, halogen or CN; ##STR2## and ##STR3## each represent a specified six-membered ring; R.sup.2 represents alkyl of 1-20 C; the asterisk designates an asymmetric carbon atom; and m and n each represents 0 or 1.
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