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公开(公告)号：US5076947A
公开(公告)日：1991-12-31
申请号：US361864
申请日：1989-06-06
IPC分类号： C07C33/20 , C07C41/00 , C07C43/18 , C07C43/196 , C07C43/205 , C07C43/23 , C07C67/00 , C07C69/94 , C07C255/46 , C07C255/53 , C07C255/55 , C07C255/57 , C07D213/30 , C07D213/79 , C07D213/80 , C07D239/26 , C07D239/28 , C07D239/34 , C09K19/20 , C09K19/30 , C09K19/34 , C09K19/54
CPC分类号： C07D213/30 , C07C255/53 , C07C255/55 , C07C255/57 , C07C33/20 , C07C43/196 , C07C43/23 , C07D213/79 , C07D213/80 , C07D239/26 , C07D239/28 , C07D239/34 , C09K19/2028 , C09K19/3068 , C09K19/3444 , C09K19/3463
摘要： An optically active compound having a high twistability and almost no change in the intrinsic pitch depending on temperature, and a liquid crystal composition comprising the compound are provided, which optically active compound is expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent 1-20C alkyl or alkoxy, halogen or H; l, m and n each represent 0 or 1; and ##STR2## wherein Y represents H, halogen or cyano.
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2.发明授权
公开(公告)号：US5238603A
公开(公告)日：1993-08-24
申请号：US864678
申请日：1992-04-07
CPC分类号： C09K19/126 , C09K19/2021 , C09K19/3003 , C09K19/3441 , C09K19/42
摘要： A liquid crystal compound having specific features suitable to use for a display mode utilizing ferroelectric liquid crystals, particularly a large spontaneous polarization value and a liquid crystal composition using the compound are provided, which compound is an optically active liquid crystalline compound of the formula ##STR1## wherein l and m each are 0 or 1; at least one of R.sup.1 and R.sup.2 is an optically active alkoxy group of the formula ##STR2## wherein R.sup.3 is 2 or 3C alkyl and R.sup.4 is 3-18C alkyl, but R.sup.3 .noteq.R.sup.4 and the other thereof is 1-20C alkyl, alkoxy or alkanoyloxy, halogen or cyano; and A is a specified two or three rings compound.
摘要翻译： 提供了具有适合用于利用铁电液晶的显示模式，特别是大的自发极化值的特定特征的液晶化合物和使用该化合物的液晶组合物，该化合物是下式的光学活性液晶化合物： （I）其中l和m各自为0或1; R 1和R 2中的至少一个是下式的光学活性烷氧基：其中R 3是2或3个C 3烷基，R 4是3-18个C烷基，但R 3和R 4的另一个是1-20C烷基，烷氧基或 烷酰氧基，卤素或氰基; 而A是一个指定的两个或三个环化合物。
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3.发明授权Optically active-1-(2-halogen-substituted-phenyl)-ethanol and its derivative 失效光学活性-1-（2-卤代苯基） - 乙醇及其衍生物
公开(公告)号：US4904409A
公开(公告)日：1990-02-27
申请号：US239277
申请日：1988-09-01
CPC分类号： C07C255/00 , C09K19/2028
摘要： An optically active compound having characteristics necessary for realizing liquid crystal compositions provided with suitable characteristics, particularly a negative temperature characteristic and a very high twistability, and a liquid crystal composition containing the compound are provided, which optically active compound is expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 are 1-20 C alkyl or alkoxy or H; l, m and n are 0 or 1; X is F, Cl, Br or CN; and ##STR2## each independently represent ##STR3## wherein Y is H, halogen or CN.
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4.发明授权
公开(公告)号：US4971909A
公开(公告)日：1990-11-20
申请号：US227248
申请日：1988-08-02
申请人： Masakazu Kaneoya , Naoyuki Yoshida , Manabu Uchida
发明人： Masakazu Kaneoya , Naoyuki Yoshida , Manabu Uchida
CPC分类号： C12P17/12 , C12P41/004
摘要： The present invention provides a process for producing optically active compounds by a biochemical method in which specific compounds having pyridine skeletons and hydroxyl groups are reacted with esters in the presence of hydrolases.The compounds have the following general formula: ##STR1## wherein X is selected from substituted pyridyl groups. Y is selected from hydrogen and halogen atoms, a cyano group, and a trifluoromethyl group. R is an alkylene group having 1-20 carbon atoms, and n is 0 or 1. Q is an alkylene group having 1-20 carbon atoms and m is 0 or 1.
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公开(公告)号：US4965018A
公开(公告)日：1990-10-23
申请号：US326795
申请日：1989-03-21
申请人： Manabu Uchida , Naoyuki Yoshida , Masakazu Kaneoya
发明人： Manabu Uchida , Naoyuki Yoshida , Masakazu Kaneoya
IPC分类号： C07D213/30 , C07D213/55 , C09K19/34 , C09K19/54 , G02F1/13
CPC分类号： C07D213/30 , C09K19/3444 , C09K19/3463
摘要： A novel optically active pyridylethanol derivative having a high twistability and also a superior temperature characteristic is provided, which derivative is expressed by the formula ##STR1## wherein R is an alkyl group of alkoxy group each of 1 to 20 carbon atoms or hydrogen atom, m and n each represent 0 or 1, ##STR2## each independently represent ##STR3## wherein Y is any one of H, halogen atom or CN and ##STR4## is a pyridine ring the N atom of which may be present at an optionally chosen site thereof.
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公开(公告)号：US4962031A
公开(公告)日：1990-10-09
申请号：US189163
申请日：1988-05-02
CPC分类号： C12P13/001 , C12P13/002 , C12P41/004 , C12P7/62
摘要： The present invention provides a process for producing optically active compounds by a biochemical method in which specific compounds having hydroxyl groups are reacted with esters in the presence of hydrolases. The compounds have the following general formula: ##STR1## wherein X is selected from halogen atoms and a cyano group. Y is selected from the group constituting substituted phenyl groups, halogen atoms, cyano, trifluoromethyl and amino groups and alkylamino and alkyloxycarbonyl groups in which alkyl groups have 1-20 carbon atoms. R is an alkylene group having 1-20 carbon atoms and n is 0 or 1.
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公开(公告)号：US4882451A
公开(公告)日：1989-11-21
申请号：US189162
申请日：1988-05-02
申请人： Naoyuki Yoshida , Masakazu Kaneoya , Manabu Uchida
发明人： Naoyuki Yoshida , Masakazu Kaneoya , Manabu Uchida
CPC分类号： C12P9/00 , C07F7/0812 , C07F7/0818 , C12P41/004
摘要： The present invention provides optically active compounds and a process for producing the optically active compounds by a biochemical method in which specific compounds having hydroxyl or acyloxy groups are reacted with esters in the presence of hydrolase. The compounds have the following general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are selected from alkyl groups having 1-4 carbon atoms and phenyl groups, X is selected from a hydrogen atom and ##STR2## R is selected from alkyl groups having 1-20 carbon atoms, and C* indicates an asymmetric carbon atom.
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8.发明授权Process for producing 1-phenyl-1,3-propanediols having high optical purtiy 失效具有高光学纯度的1-苯基-1,3-丙二醇的方法
公开(公告)号：US5395983A
公开(公告)日：1995-03-07
申请号：US182566
申请日：1994-01-18
CPC分类号： C07C29/78 , C07C33/26 , C07B2200/07
摘要： R or S-1-phenyl-1,3-propanediols having optical purity of 100% ee were obtained by recrystallization of R or S-1-phenyl-1,3-propanediols having optical purity of 20% ee to below 100% ee, the last diols are represented by the formula, ##STR1## It is possible to obtain optically pure 1-phenyl-3-propanediols from optically impure 1-phenyl-1,3-propanediols by a simple method.
摘要翻译： 光学纯度为100％ee的R或S-1-苯基-1,3-丙二醇通过将光学纯度为20％ee的R或S-1-苯基-1,3-丙二醇重结晶至低于100％ee ，最后的二醇由下式表示：通过简单的方法可以从光学上不纯的1-苯基-1,3-丙二醇获得光学上纯的1-苯基-3-丙二醇。
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公开(公告)号：US5128252A
公开(公告)日：1992-07-07
申请号：US690256
申请日：1991-04-25
IPC分类号： C12P41/00
CPC分类号： C12P41/004
摘要： The invention provides an optically active compound which is R- or S- ester having the general formula: ##STR1## wherein R.sup.1 is hydrogen or acyl of 2-20 carbon atoms, R.sup.2 is alkyl, alkenyl or alkynyl of 3-40 carbon atoms, and the carbon indicated by * is an asymmetric carbon atom.
摘要翻译： 本发明提供了具有以下通式的R-或S-酯的光学活性化合物：其中R1是氢或2-20个碳原子的酰基，R2是3-40的烷基，烯基或炔基 碳原子，由*表示的碳是不对称碳原子。
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10.发明授权Process for selectively producing optically active 1-derivatized-2-diol using lipase CES and triglyceride 失效使用脂肪酶CES和甘油三酸酯选择性地制备光学活性的1-衍生化的2-二醇的方法
公开(公告)号：US5391494A
公开(公告)日：1995-02-21
申请号：US104408
申请日：1993-08-10
IPC分类号： C07D309/12 , C12P17/06 , C12P41/00
CPC分类号： C12P41/004 , C07D309/12 , C12P17/06 , Y02P20/55 , Y10S435/874
摘要： This invention provides optically active compounds which are starting materials of physiologically active substances, functional materials and the like, and the compounds are represented by the general formula (I): ##STR1## wherein R.sup.1 is hydrogen or alkanoyl of 2-20 carbon atoms, R.sup.2 is alkyl of 1-40 carbon atoms, alkenyl of 1-40 carbon atoms, or alkynyl of 1-40 carbon atoms in which the alkyl, alkenyl or alkynyl moiety is possible to have phenyl, cyclohexyl, pyridyl, pyrimidyl, pyridadyl, pyrazyl, dioxyl, bicyclooctyl, or a substituent thereof, or halogen, cyanogen, oxygen, nitrogen, silicon or sulfur, and X is a protective group removable by a chemical method of organic synthesis and C* is an asymmetric carbon.
摘要翻译： 本发明提供作为生理活性物质，功能材料等的原料的光学活性化合物，该化合物由通式（I）表示：其中R 1为氢或2-20的烷酰基 碳原子，R2是1-40个碳原子的烷基，1-40个碳原子的烯基或1-40个碳原子的炔基，其中烷基，烯基或炔基部分可能具有苯基，环己基，吡啶基，嘧啶基， 吡啶基，吡嗪基，二恶基，双环辛基或其取代基，或卤素，氰，氧，氮，硅或硫，X是通过有机合成的化学方法除去的保护基，C *是不对称碳。
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