专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US5874593A Production process and intermediate of tetrazole compound 失效
标题翻译：四唑化合物的生产工艺和中间体
公开(公告)号：US5874593A
公开(公告)日：1999-02-23
申请号：US592375
申请日：1996-02-08
申请人： Hideki Ushio , Takayuki Higashii , Masayoshi Minai , Akihiko Nakamura
发明人： Hideki Ushio , Takayuki Higashii , Masayoshi Minai , Akihiko Nakamura
IPC分类号： C07C251/86 , C07C257/18 , C07C257/22 , C07D257/04 , C07D405/04
CPC分类号： C07D257/04 , C07C251/86 , C07C257/18 , C07C257/22 , C07D405/04
摘要： There are disclosed an industrially favorable process for producing a tetrazole compound of general formula (1): ##STR1## characterized in that a nitrile of general formula (2):R.sup.1 CN (2)is reacted with hydrazine or a salt thereof in the presence of a catalyst, followed by reaction with a nitrous acid compound of general formula (3):ANO.sub.2 (3)or a nitrile of general formula (2) is reacted with hydrogen sulfide, followed by reaction with an alkyl halide of general formula (4):R.sup.4 J (4)with hydrazine or a salt thereof, and then with a nitrous acid compound of general formula (3); and an intermediate of general formula (5):R.sup.1 C(=R.sup.5)R.sup.6 (5)which is useful for the production of the tetrazole compound (in which R.sup.1 to R.sup.6, A and J in the above formulas are as defined in the specification).
摘要翻译： PCT No.PCT / JP95 / 00919 Sec。 371日期1996年2月8日 102（e）日期1996年2月8日PCT提交1995年5月15日PCT公布。出版物WO95 / 31445 日本公开了1995年11月23日的通式（1）的四唑化合物的工业上有利的方法：其中通式（2）的腈：R1CN（2）与肼或其盐在催化剂存在下反应，随后与通式（3）的亚硝酸化合物：ANO2（3）或通式（2）的腈反应与硫化氢反应，随后与通式（4）的烷基卤化物：R4J（4）与肼或其盐，然后与通式（3）的亚硝酸化合物反应; 和通式（5）的中间体：可用于制备四唑化合物的R1C（= R5）R6（5）（上述式中的R1至R6，A和J如说明书中所定义）。

42. 发明授权

US5762825A Liquid crystal mixture and liquid crystal device comprising the same 失效
标题翻译：液晶混合物和包含该液晶混合物的液晶装置
公开(公告)号：US5762825A
公开(公告)日：1998-06-09
申请号：US538909
申请日：1995-10-04
申请人： Yoshiaki Tsubata , Kyoko Yamamoto , Koichi Fujisawa , Yukari Fujimoto , Tsutomu Matsumoto , Masayoshi Minai , Chizu Sekine
发明人： Yoshiaki Tsubata , Kyoko Yamamoto , Koichi Fujisawa , Yukari Fujimoto , Tsutomu Matsumoto , Masayoshi Minai , Chizu Sekine
IPC分类号： C09K19/30 , C09K19/42 , C09K19/44 , C09K19/46 , C09K19/06 , C09K19/12 , C09K19/34
CPC分类号： C09K19/3001 , C09K19/42 , C09K19/44 , C09K19/46
摘要： A liquid crystal mixture containing (a) at least one compound of a compound of the formula (1): ##STR1## in which R is a C.sub.1 -C.sub.12 alkyl group, etc.; X.sub.1, X.sub.2, X.sub.3, X.sub.4, Y.sub.1, Y.sub.2, Y.sub.3 and Y.sub.4 represent, independently each other, CH, CF or N; A is a hydrogen atom, a 4-R.sub.1 -(cycloalkyl) group, etc. in which R.sub. is a C.sub.1 -C.sub.12 alkyl group, etc. and p is 0 or 1; and Z is --C.tbd.C-- or a single bond, and (b) at least one compound of the formula (4): ##STR2## wherein rings C, D, E and F represent, independently each other, 1,4-phenylene, etc. which may be substituted by 1, 2 or 3 fluorine atoms; R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.12 alkyl group, etc.; R.sub.3 is a hydrogen atom, a fluorine atom, a fluoromethyl group, etc.; Z.sub.1, Z.sub.2 and Z.sub.3 represent, independently each other, --COO--, --OCO--, --OCH.sub.2 --, --CH.sub.2 O--, a C.sub.1 -C.sub.5 alkylene group, a C.sub.2 -C.sub.5 alkenylene group, etc.; J and K represent, independently each other, a methylene group or --O--; a, b, c, d and e represent, independently each other, 0 or 1.
摘要翻译：一种液晶混合物，其含有（a）至少一种式（1）化合物的化合物：其中R是C1-C12烷基等;其中R是C1-C12烷基; X1，X2，X3，X4，Y1，Y2，Y3和Y4彼此独立地表示CH，CF或N; A是氢原子，4-R1-（环烷基）基等，其中R 1是C 1 -C 12烷基等，p是0或1; 和（b）至少一种式（4）的化合物：其中环C，D，E和F各自独立地表示，可以被1,2或3个氟原子取代的1,4-亚苯基等; R2是氢原子，C1-C12烷基等; R3是氢原子，氟原子，氟甲基等; Z1，Z2和Z3彼此独立地表示-COO-，-OCO-，-OCH2-，-CH2O-，C1-C5亚烷基，C2-C5亚烯基等; J和K彼此独立地表示亚甲基或-O-; a，b，c，d和e彼此独立地表示0或1。

43. 发明授权

US5554317A Compound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display element 失效
标题翻译：具有不饱和侧链的化合物，其制备方法，由其制备的液晶聚合物，液晶混合物和显示元件
公开(公告)号：US5554317A
公开(公告)日：1996-09-10
申请号：US274315
申请日：1994-07-13
申请人： Yoshiaki Tsubata , Kayoko Ueda , Koichi Fujisawa , Takayuki Higashii , Masayoshi Minai , Naoyuki Takano , Yukari Fujimoto
发明人： Yoshiaki Tsubata , Kayoko Ueda , Koichi Fujisawa , Takayuki Higashii , Masayoshi Minai , Naoyuki Takano , Yukari Fujimoto
IPC分类号： C09K19/10 , C09K19/02 , C09K19/04 , C09K19/34 , C09K19/38 , C09K19/40 , C09K19/52 , C09K19/12 , G02F1/13
CPC分类号： C09K19/3469 , C09K19/0225 , C09K19/04 , C09K19/3857 , C09K19/3861 , C09K19/408
摘要： A compound having an unsaturated side chain represented by the formula: ##STR1## in which A and B are the same and different and represent an aromatic or heterocyclic group or either one of A and B represents a single bond; X.sub.1, X.sub.2 and X.sub.3 are the same or different and represent a hydrogen atom or a lower alkyl group; R.sub.1 represents a saturated or unsaturated alkyl group which may be substituted with a halogen atom or an alkoxyalkyl group which may be substituted with a halogen atom; X represents --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.ident.C-- or a single bond; n is an integer of 0 to 6; q is an integer of 1 to 15; p and s are each 0 or 1; and the asterisk * indicates an asymmetric carbon atom, which is useful as an intermediate of a liquid crystal or a monomer of a liquid crystalline polymer.
摘要翻译：具有下式表示的不饱和侧链的化合物：其中A和B相同且不同，表示芳族或杂环基，或者A和B中的任一个表示单键; X 1，X 2和X 3相同或不同，表示氢原子或低级烷基; R1表示可以被卤素原子取代的饱和或不饱和的烷基或可被卤素原子取代的烷氧基烷基; X表示-CH 2 CH 2 - ， - CH = CH - ， - C = C-或单键; n为0〜6的整数。 q为1〜15的整数， p和s分别为0或1; 并且星号*表示不对称碳原子，其可用作液晶或液晶聚合物的单体的中间体。

44. 发明授权

US5395977A Process for producing optical active 4-hydroxy-2-cyclopentenone 失效
标题翻译：光学活性4-羟基-2-环戊烯酮的制备方法
公开(公告)号：US5395977A
公开(公告)日：1995-03-07
申请号：US31182
申请日：1993-03-12
申请人： Fumio Toda , Yorihiko Inoue , Masayoshi Minai
发明人： Fumio Toda , Yorihiko Inoue , Masayoshi Minai
IPC分类号： C07B53/00 , C07B57/00 , C07C45/78 , C07C45/85 , C07C49/707
CPC分类号： C07C45/78 , C07C45/85
摘要： A process for producing optically active 4-hydroxy-2-cyclopentenone [1] which comprises reacting 4-hydroxy-2-cyclopentenone represented by the formula: ##STR1## with an optically active propargyl alcohol derivative represented by the general formula: ##STR2## wherein R and R.sup.1 each independently represent a halogenated phenyl group, an alkylphenyl group, or an alkyl group which may be substituted with one or more halogen atom(s), and * indicates an asymmetric carbon atom, to form an optically active complex [3] consisting essentially of optically active 4-hydroxy-2-cyclopentenone represented by the formula [1] ##STR3## wherein * indicates an asymmetric carbon atom, and the optically active propargyl alcohol derivative [2], and then decomposing the optically active complex [3].
摘要翻译：一种制备光学活性的4-羟基-2-环戊烯酮的方法[1]，其包括使由下式表示的4-羟基-2-环戊烯酮与由下列通式表示的光学活性炔丙醇衍生物反应：其中R和R 1各自独立地表示卤代苯基，烷基苯基或可以被一个或多个卤素原子取代的烷基，和*表示不对称碳原子以形成光学活性基本上由式[1]表示的光学活性4-羟基-2-环戊烯酮[3]组成的复合物[3]，其中*表示不对称碳原子和光学活性炔丙醇衍生物[2]，然后分解光学活性复合物[3]。

45. 发明授权

US5326871A Optically active pyrimidine compound, process for producing the same and liquid crystal composition containing the same 失效
标题翻译：光学活性嘧啶化合物，其制备方法和含有该嘧啶化合物的液晶组合物
公开(公告)号：US5326871A
公开(公告)日：1994-07-05
申请号：US992027
申请日：1992-12-17
申请人： Takayuki Higashii , Shoji Toda , Masayoshi Minai , Chizu Sekine , Takeshi Tani , Koichi Fujisawa
发明人： Takayuki Higashii , Shoji Toda , Masayoshi Minai , Chizu Sekine , Takeshi Tani , Koichi Fujisawa
IPC分类号： C07D239/26 , C07D239/34 , C09K19/02 , C09K19/34 , C09K19/46 , C09K19/58 , C07D239/02
CPC分类号： C07D239/26 , C07D239/34 , C09K19/0225 , C09K19/3463 , C09K19/46 , C09K19/588
摘要： An optically active pyrimidine compound represented by general formula (I): ##STR1## wherein R represents a fluoroalkyl group having 1 or 2 carbon atom(s), R.sup.1 represents an alkyl group having 1-15 carbon atoms or an alkoxyalkyl group having 2-15 carbon atoms, both the alkyl and alkoxyalkyl groups being optionally substituted by halogen atom, Y represents --O--, --COO-- or --OCO--, A represents: ##STR2## wherein X represents a hydrogen atom or a halogen atom, m and s each represent 0 or 1, and the C* means an asymmetric carbon atom; a process for producing said pyrimidine compound; and a liquid crystal composition containing said pyrimidine compound.
摘要翻译：由通式（I）表示的光学活性嘧啶化合物：其中R表示具有1或2个碳原子的氟代烷基，R 1表示具有1-15个碳原子的烷基或烷氧基烷基具有2-15个碳原子，烷基和烷氧基烷基任选被卤素原子取代，Y表示-O - ， - COO-或-OCO-，A表示：X表示氢原子或卤原子，m和 s各自表示0或1，C *表示不对称碳原子; 制备所述嘧啶化合物的方法; 和含有所述嘧啶化合物的液晶组合物。

46. 发明授权

US5019298A Optically active aromatic carboxylic acid derivatives and process for producing the same 失效
标题翻译：光学活性芳族羧酸衍生物及其制备方法
公开(公告)号：US5019298A
公开(公告)日：1991-05-28
申请号：US186020
申请日：1988-04-25
申请人： Masayoshi Minai , Takayuki Higashii
发明人： Masayoshi Minai , Takayuki Higashii
IPC分类号： C07C65/24 , C07C69/76 , C12P7/42 , C12P41/00
CPC分类号： C12P7/42 , C07C65/24 , C07C69/76 , C12P41/00
摘要： Disclosed are optically active aromatic carboxylic acid derivatives represented by the formula (I): ##STR1## (wherein R.sub.2 represents an alkoxyalkyl group having 1 to 20 carbon atoms or an alkyl group having 1 to 20 carbon atoms, which alkyl group may be substituted with a halogen atom; represents a number of 1 or 2; m represents a number of 0 or 1; and * indicates asymmetric carbon atom) and a process for producing such derivatives through the following reaction steps: ##STR2## The optically active aromatic carboxylic acid derivatives represented by the above-described formula (I) are useful as a liquid crystal material and can be also utilized as an intermeidate for the preparation of pharmaceuticals, agricultural chemicals and the like.
摘要翻译：公开了由式（I）表示的光学活性芳族羧酸衍生物：其中R 2表示碳原子数1〜20的烷氧基烷基或碳原子数1〜20的烷基，该烷基可以被卤素原子取代;数为1或2; m表示0或1的数; *表示不对称碳原子），以及通过以下反应步骤制备该衍生物的方法：＆lt; IMAGE＆gt; +图像光学活性芳族羧酸衍生物（I）。由上述式（I）表示的光学活性芳族羧酸衍生物可用作液晶材料，也可用作制备药物，农药等的中间体。

47. 发明授权

US4970345A Process for preparing oxocyclopentene derivatives 失效
标题翻译：制备氧代环戊烯衍生物的方法
公开(公告)号：US4970345A
公开(公告)日：1990-11-13
申请号：US831067
申请日：1986-02-20
申请人： Masayoshi Minai
发明人： Masayoshi Minai
IPC分类号： C07C45/59 , C07C45/62 , C07C45/66 , C07C49/493 , C07C49/507 , C07C49/743 , C07C49/747
CPC分类号： C07C49/507 , C07C45/59 , C07C45/62 , C07C45/66 , C07C49/493 , C07C49/743 , C07C49/747
摘要： A process for preparing oxocyclopentenes of the formula: ##STR1## wherein R.sup.1 is hydrogen, lower alkyl or lower alkenyl and R.sup.2 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, substituted or unsubstituted aryl, ar(lower)alkyl, thienyl or cycloalkyl, which comprises subjecting a furan-carbinol of the formula: ##STR2## wherein R.sup.1 is as defined above and R.sup.3 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, substituted or unsubstituted aryl, ar(lower)alkyl, thienyl or cycloalkyl to rearrangement, subjecting the resultant hydroxycyclopentenone of the formula: ##STR3## wherein R.sup.1 and R.sup.3 are each as defined above to hydrogenation and subjecting the resulting hydroxycyclopentanone of the formula; ##STR4## wherein R.sup.1 and R.sup.2 are each as defined above to dehydration.
摘要翻译：制备下式的氧代环戊烯的方法：其中R1是氢，低级烷基或低级烯基，R2是氢，低级烷基，低级烯基，低级炔基，取代或未取代的芳基，芳（低级）烷基，噻吩基或环烷基其包括使下式的呋喃甲醇：其中R 1如上定义，R 3是氢，低级烷基，低级烯基，低级炔基，取代或未取代的芳基，芳（低级）烷基，噻吩基或环烷基，重新排列，得到下式的所得羟基环戊烯酮：其中R 1和R 3各自如上所定义氢化并使所得到的式的羟基环戊酮进行氢化; 其中R1和R2各自如上所定义脱水。

48. 发明授权

US4683323A Method for inversion of optically active 4-hydroxy-2-cyclopentenones 失效
标题翻译：光学活性4-羟基-2-环戊烯酮的反转方法
公开(公告)号：US4683323A
公开(公告)日：1987-07-28
申请号：US758801
申请日：1985-07-25
申请人： Masayoshi Minai , Yuji Ueda
发明人： Masayoshi Minai , Yuji Ueda
IPC分类号： C07C45/64 , C07C45/67 , C07C49/707 , C07C203/08 , C07C309/63 , C07C143/68
CPC分类号： C07C201/02 , C07C303/28 , C07C45/64 , C07C45/673 , C07B2200/07 , C07C2101/08
摘要： By hydrolyzing a sulfonic acid ester or a nitric acid ester of an optically active 4-hydroxy-2-cyclopentenone, the steric inversion of the hydroxyl group at the 4-position of the cyclopentenone mentioned above is effected.4-hydroxy-2-cyclopentenone is useful as a raw material of prostaglandins (natural substance is an (R)-substance) having stimulative action to uterine muscle and vasodilator action. For instance, 4(S)-hydroxy-2-cyclopentenone can be configurationally inverted to R-isomer. Accordingly, this method is extremely meaningful in the synthesis of prostaglandins.
摘要翻译：通过水解光学活性的4-羟基-2-环戊烯酮的磺酸酯或硝酸酯，可以实现上述环戊烯酮在4-位的羟基的立体倒置。 4-羟基-2-环戊烯酮可用作具有对子宫肌肉和血管扩张剂作用的刺激作用的前列腺素（天然物质是（R））的原料。例如，可以将4（S） - 羟基-2-环戊烯酮构型反转成R-异构体。因此，这种方法在前列腺素的合成中是非常有意义的。

49. 发明授权

US4496767A Process for preparing 2-cyclopentenone derivatives 失效
标题翻译： 2-环戊烯酮衍生物的制备方法
公开(公告)号：US4496767A
公开(公告)日：1985-01-29
申请号：US543152
申请日：1983-10-18
申请人： Masayoshi Minai , Tadashi Katsura
发明人： Masayoshi Minai , Tadashi Katsura
IPC分类号： C07C45/00 , C07C45/59 , C07C45/61 , C07C45/62 , C07C45/65 , C07C45/66 , C07C45/67 , C07C49/587 , C07C49/597 , C07C49/647 , C07C49/683 , C07C49/703 , C07C49/707 , C07C49/743 , C07C49/747 , C07C67/00
CPC分类号： C07C45/676 , C07C45/59 , C07C45/62 , C07C45/65 , C07C45/66
摘要： A novel process for preparing 2-cyclopentenones of the formula: ##STR1## wherein R.sub.1 is hydrogen, alkyl or alkenyl and R.sub.2 is alkyl, alkenyl, alkynyl, cycloalkyl, aryl or aralkyl, which comprises esterifying a mixture of a 3-hydroxy-4-cyclopentenone of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are each as defined above and a 4-hydroxy-2-cyclopentenone of the formulas: ##STR3## wherein R.sub.1 and R.sub.2 are each as defined above with an aliphatic carboxylic acid to give a mixture of the 4-hydroxy-2-cyclopentenone (III) and the cyclopentenone ester of the formula: ##STR4## wherein R.sub.1 and R.sub.2 are each as defined above and R is hydrogen or C.sub.1 -C.sub.4 alkyl and subjecting the resulting mixture to reduction.
摘要翻译：一种制备下式的2-环戊烯酮的新方法：其中R1是氢，烷基或烯基，R2是烷基，烯基，炔基，环烷基，芳基或芳烷基，其包括将3- （II）的羟基-4-环戊烯酮，其中R 1和R 2各自如上所定义，和下式的4-羟基-2-环戊烯酮：其中R 1和R 2各自为（III）和下式的环戊烯酮的混合物：其中R 1和R 2各自如上所定义，R是氢原子或C 1 -C 4烷基，并将所得混合物还原。

50. 发明授权

US4335263A Process for preparing aromatic aldehydes 失效
标题翻译：制备芳香族醛的方法
公开(公告)号：US4335263A
公开(公告)日：1982-06-15
申请号：US218135
申请日：1980-12-19
申请人： Masayoshi Minai
发明人： Masayoshi Minai
IPC分类号： C07C47/565 , C07C43/225 , C07C45/00 , C07C45/27 , C07C45/30 , C07C45/43 , C07C45/46 , C07C45/54 , C07C45/56 , C07C47/575 , C07C67/00 , C07C67/08 , C07D317/54 , C07D319/18 , C11B9/00 , C07C37/01
CPC分类号： C11B9/0007 , C07C43/225 , C07C45/27 , C07C45/43 , C07C45/46 , C07C45/54 , C07C45/565 , C07C47/575 , C07C67/08 , C07D317/54 , C07D319/18 , Y02P20/582
摘要： A process for preparing an aromatic aldehyde represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or a lower alkyl group or R.sub.1 and R.sub.2 may jointly form an alkylene group, provided that R.sub.1 and R.sub.2 do not represent a hydrogen atom at the same time.
摘要翻译：一种制备由以下通式表示的芳族醛的方法：其中R 1和R 2各自表示氢原子或低级烷基，或者R 1和R 2可以共同形成亚烷基，条件是R 1和R 2不表示同时是氢原子。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式