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30 条记录 (耗时 0.037 秒)

    Method for isolation of glucose isomerase
    25.
    发明授权
    Method for isolation of glucose isomerase 失效
    葡萄糖异构酶分离方法

    公开(公告)号：US4255521A

    公开(公告)日：1981-03-10

    申请号：US40872

    申请日：1979-05-21

    申请人： Hideo Hirohara ,  Shigeyasu Nabeshima ,  Satoshi Mitsuda ,  Tsuneyuki Nagase

    发明人： Hideo Hirohara ,  Shigeyasu Nabeshima ,  Satoshi Mitsuda ,  Tsuneyuki Nagase

    IPC分类号： C12N1/06 ,  C12N9/92

    CPC分类号： C12N9/92 ,  C12N1/066 ,  Y10S435/803 ,  Y10S435/886 ,  Y10S435/887

    摘要： In a process for extracting glucose isomerase from microorganism cells containing glucose isomerase by the so called high pressure release and impact method in which the suspension of the microorganism cells is homogenized for the extraction by releasing the pressure applied on said suspension instantaneously and giving the suspension an impact at very high velocity, the concentration of the suspension containing microorganism cells and the pressure applied on the said suspension are selected within specific ranges, namely from 0.5 to 10 wt. % (on a dry substance base) and from 400 to 700 Kg/cm.sup.2, respectively.

    摘要翻译： 在通过所谓的高压释放和冲击法从含有葡萄糖异构酶的微生物细胞中提取葡萄糖异构酶的方法中，其中微生物细胞的悬浮液通过释放立即施加在所述悬浮液上的压力并将悬浮液 以非常高的速度冲击，含有微生物细胞的悬浮液的浓度和施加在所述悬浮液上的压力在特定范围内选择，即0.5至10wt。 ％（在干物质基础上）和400至700Kg / cm 2。

    Method for racemization of optically active amines
    26.
    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。

    Method for the preparation of optically active allylic esters
    29.
    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。