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30 条记录 (耗时 0.041 秒)

    Method for preparing highly absorbent hydro-gel polymers
    22.
    发明授权
    Method for preparing highly absorbent hydro-gel polymers 失效
    制备高吸水性水凝胶聚合物的方法

    公开(公告)号：US4320040A

    公开(公告)日：1982-03-16

    申请号：US160451

    申请日：1980-06-18

    申请人： Fumio Fujita ,  Shuji Kitamura ,  Toshifumi Tamura ,  Tsuneyuki Nagase

    发明人： Fumio Fujita ,  Shuji Kitamura ,  Toshifumi Tamura ,  Tsuneyuki Nagase

    IPC分类号： A61L15/60 ,  C08F8/32 ,  C08F8/44 ,  C08F20/06 ,  C08F261/04 ,  C08L29/04 ,  C08L33/02

    CPC分类号： C08F8/44 ,  A61L15/60 ,  C08F20/06 ,  C08F261/04 ,  C08F8/32 ,  Y10S524/916

    摘要： A method for producing a hydrophilic gel comprising polymerizing acrylic acid and/or methacrylic acid in the presence of polyvinyl alcohol to obtain a polymer (A) which is then subjected to neutralization followed by heat treatment or to heat treatment followed by neutralization, or polymerizing a neutralized product of acrylic acid and/or methacrylic acid in the presence of polyvinyl alcohol to obtain a polymer (B) which is then subjected to heat treatment, wherein said polymerization is carried out in an aqueous solution having a total concentration of acrylic acid and/or methacrylic acid or its neutralized product (the weight of the neutralized product is converted to the acid basis) and polyvinyl alcohol of 10 to 60% by weight, said heat treatment temperature is 50.degree. to 150.degree. C., and the weight ratio of polyvinylalcohol is acrylic acid and/or methacrylic acid or its salt (the weight of the neutralized product is converted to the acid basis) is 5 to 95: 95 to 5.

    摘要翻译： 一种亲水性凝胶的制造方法，其特征在于，在聚乙烯醇存在下使丙烯酸和/或甲基丙烯酸聚合，得到聚合物（A），然后进行中和，进行热处理或热处理后中和，或聚合 在聚乙烯醇存在下中和丙烯酸和/或甲基丙烯酸的产物，得到聚合物（B），然后进行热处理，其中所述聚合在丙烯酸和/ 或甲基丙烯酸或其中和产物（中和产物的重量以酸为基准）和聚乙烯醇为10至60重量％，所述热处理温度为50-150℃，重量比为 聚乙烯醇是丙烯酸和/或甲基丙烯酸或其盐（中和产物的重量以酸为基准）为5〜95:95〜5。

    Method for racemization of optically active amines
    23.
    发明授权
    Method for racemization of optically active amines 失效
    光学活性胺外消旋化的方法

    公开(公告)号：US4246424A

    公开(公告)日：1981-01-20

    申请号：US686575

    申请日：1976-05-14

    申请人： Tsuneyuki Nagase ,  Gohu Suzukamo ,  Yoshio Suzuki

    发明人： Tsuneyuki Nagase ,  Gohu Suzukamo ,  Yoshio Suzuki

    IPC分类号： C07B55/00 ,  C07C87/28 ,  C07C101/02 ,  C07C101/32

    CPC分类号： C07B55/00

    摘要： A method for racemization of optically active amines which comprises contacting an optically active amine of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R.sub.1 is alkyl, aralkyl or aryl and R.sub.2 is aryl or alkoxycarbonyl, the aryl or aralkyl moiety bearing optionally one or more alkyl or alkoxy groups on the aromatic ring, provided that R.sub.1 and R.sub.2 are always different from each other, with a catalyst comprising an alkali metal and a polycyclic aromatic hydrocarbon until a sufficient amount of the optically active amine is racemized.

    摘要翻译： 一种光学活性胺外消旋化的方法，其包括使下式的光学活性胺：其中C *是不对称碳原子，R 1是烷基，芳烷基或芳基，R 2是芳基或烷氧基羰基，芳基或芳烷基部分 如果R 1和R 2总是彼此不同，则在芳环上任选地具有一个或多个烷基或烷氧基，直到足够量的光学活性胺被外消旋化为止包含碱金属和多环芳烃的催化剂。

    Ionic pullulan gels and production thereof
    25.
    发明授权
    Ionic pullulan gels and production thereof 失效
    离子支链淀粉凝胶及其生产

    公开(公告)号：US4174440A

    公开(公告)日：1979-11-13

    申请号：US890505

    申请日：1978-03-27

    申请人： Fumio Fujita ,  Kousuke Fukami ,  Masanori Fujimoto ,  Tsuneyuki Nagase

    发明人： Fumio Fujita ,  Kousuke Fukami ,  Masanori Fujimoto ,  Tsuneyuki Nagase

    IPC分类号： B01J39/22 ,  C08B37/00 ,  C07H15/04

    CPC分类号： C08B37/0018 ,  B01J39/22

    摘要： A process for producing ionic pullulan gels which comprises gelation of pullulan by crosslinking and introduction of ionic groups into the resulting pullulan gel, the former comprising reacting pullulan with a bi-functional compound in a solvent in the presence of an alkaline substance, and the latter comprising reacting the resulting pullulan gel with a compound having a carboxyl, sulfonic, phosphoric or amino group in a solvent in the presence of an alkaline substance.

    摘要翻译： 一种生产离子支链淀粉凝胶的方法，其包括通过将离子基团交联并引入所得支链淀粉凝胶中而使支链淀粉凝胶化，前者包括在碱性物质存在下在溶剂中将支链淀粉与双官能化合物反应，后者 包括使所得支链淀粉凝胶与在溶剂中在碱性物质存在下具有羧基，磺酸基，磷酸基或氨基的化合物反应。

    Method for the preparation of optically active allylic esters
    27.
    发明授权
    Method for the preparation of optically active allylic esters 失效
    光学活性烯丙基酯的制备方法

    公开(公告)号：US4069385A

    公开(公告)日：1978-01-17

    申请号：US692510

    申请日：1976-06-03

    申请人： Masashi Araki ,  Tsuneyuki Nagase

    发明人： Masashi Araki ,  Tsuneyuki Nagase

    IPC分类号： C07C67/00 ,  C07C69/145 ,  C07C69/155 ,  C07C69/24 ,  C07C69/78 ,  C07C69/83

    CPC分类号： C07C67/05 ,  C07C2101/10 ,  C07C2101/16

    摘要： In the preparation of olefin derivatives having an ester group at the allylic position (hereinafter referred to as "allylic ester(s)") which comprises reacting an olefin having at least one hydrogen atom at the allylic position and which will produce an allylic ester having an asymmetric carbon atom with an organic peroxide in the presence of a copper catalyst, a method for producing optically active allylic esters characterized by using, as the copper catalyst, an optically active copper complex derived from an optically active compound selected from the group consisting of Schiff's bases of the formula: ##STR1## and amino acids of the formula: ##STR2## wherein R.sub.0 is an optically active alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, X and Y are each a hydrogen atom, an alkyl, cycloalkyl, aralkyl or aryl group, or a substituent having a hetero atom, R.sub.1 and R.sub.2 are each a hydrogen atom, or an alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, R.sub.3 is an alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, or when R.sub.3 is linked together with R.sub.2, they form a divalent hydrocarbon group including or not including a hetero atom and which is optionally substituted with a substituent having a hetero atom, and the asterisk (*) indicates an asymmetric carbon atom.

    摘要翻译： 在烯丙基位具有酯基的烯烃衍生物的制备（以下称为“烯丙基酯”）中，其包括在烯丙基位置使具有至少一个氢原子的烯烃反应，并产生具有 在铜催化剂存在下使用有机过氧化物的不对称碳原子，制备光学活性烯丙基酯的方法，其特征在于使用衍生自光学活性化合物的光学活性铜络合物，所述旋光活性铜络合物选自 希夫的下式：其中R 0是可以含有不饱和键和/或取代基的光学活性烷基，环烷基，芳烷基或芳基的式（I）的氨基酸和下式的氨基酸： 具有杂原子，X和Y各自为氢原子，烷基，环烷基，芳烷基或芳基或具有杂原子的取代基，R 1和R 2各自为氢原子或烷基， 可以含有不饱和键和/或具有杂原子的取代基的烷基，芳烷基或芳基，R3是可以含有不饱和键和/或具有杂原子的取代基的烷基，环烷基，芳烷基或芳基，或 当R3与R2连接在一起时，它们形成包含或不包括杂原子的二价烃基，其任选被具有杂原子的取代基取代，并且星号（*）表示不对称碳原子。

    Copper complex
    29.
    发明授权
    Copper complex 失效
    铜复合体

    公开(公告)号：US4029683A

    公开(公告)日：1977-06-14

    申请号：US645541

    申请日：1975-12-29

    申请人： Tadatoshi Aratani ,  Shuzo Nakamura ,  Tsuneyuki Nagase ,  Yukio Yoneyoshi

    发明人： Tadatoshi Aratani ,  Shuzo Nakamura ,  Tsuneyuki Nagase ,  Yukio Yoneyoshi

    IPC分类号： C07F1/08

    摘要： A copper complex coordinated with a Schiff base is provided herein, which complex is especially advantageous to catalyze the asymmetric synthesis of alkyl chrysanthemates. The specific complex of the present invention is a copper complex coordinated with a chiral Schiff base of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R.sup.1 is selected from (a) alkyl groups whose carbon atom number is 1-10, and (b) aralkyl groups with or without alkoxy substituent(s), whose total carbon atom number is 7-20, R.sup.2 is selected from aryl groups with alkoxy substituent(s), whose total carbon atom number is 7-30, X is selected from (a) hydrogen, (b) alkyl groups having 1-10 carbon atoms, (c) a phenyl group, (d) alkoxy groups having 1-10 carbon atoms, (e) halogen atoms, (f) nitro, or X is benzo which together with the ring to which it is attached forms a naphthalene ring, and Y is a hydrogen atom.

    摘要翻译： 本文提供了与席夫碱配位的铜络合物，该络合物特别有利于催化烷基菊酸酯的不对称合成。 本发明的具体络合物是与下式的手性席夫碱配位的铜络合物：其中C *是不对称碳原子，R1选自（a）碳原子数为1-10的烷基 ，和（b）具有或不具有烷氧基取代基的芳烷基，其总碳原子数为7-20，R2选自具有烷氧基取代基的芳基，其总碳原子数为7-30，X 选自（a）氢，（b）具有1-10个碳原子的烷基，（c）苯基，（d）具有1-10个碳原子的烷氧基，（e）卤素原子，（f）硝基， 或X为苯并
    与与其连接的环一起形成萘环，Y为氢原子。