Oxidation process of aromatic compounds
    5.
    发明授权
    Oxidation process of aromatic compounds 失效
    芳香族化合物的氧化工艺

    公开(公告)号:US4825007A

    公开(公告)日:1989-04-25

    申请号:US116734

    申请日:1987-11-04

    CPC分类号: C07C29/50

    摘要: An aromatic compound selected from benzene and biphenyl compounds containing at least one isopropyl group is oxidized to convert at least one of the at least one isopropyl group into a 2-hydroxy-2-propyl group. The oxidation of the aromatic compound is effected with molecular oxygen in the presence of an aqueous alkali solution in an oxidative reaction vessel made of nickel at parts thereof where the vessel comes into contact with a reaction mixture. In particular, the above process suppresses the formation of by-products and permits long-term oxidation on an industrial scale.

    摘要翻译: 选自含有至少一个异丙基的苯和联苯化合物的芳族化合物被氧化,以将至少一个异丙基中的至少一个转化为2-羟基-2-丙基。 芳族化合物的氧化是在镍的氧化反应容器中的碱水溶液存在下用分子氧进行的,其中镍的氧化反应容器在其中容器与反应混合物接触的部分。 特别地,上述方法抑制副产物的形成并允许工业规模的长期氧化。

    Trehalose phosphorylase and preparation thereof
    6.
    发明授权
    Trehalose phosphorylase and preparation thereof 失效
    海藻糖磷酸酶及其制备方法

    公开(公告)号:US5643775A

    公开(公告)日:1997-07-01

    申请号:US406554

    申请日:1995-03-20

    IPC分类号: C12N9/10 C12P19/12 C12R1/645

    CPC分类号: C12N9/1051 C12P19/12

    摘要: This invention provides highly thermally stable trehalose phosphorylases. The trehalose phosphorylases of the present invention can be obtained from cultured mixture of microorganisms and are highly thermally stable, and produce .alpha.-D-glucose 1-phosphate and D-glucose by an action on trehalose and an inorganic phosphoric acid or salt thereof, or trehalose by an action on .alpha.-D-glucose 1-phosphate and D-glucose. This invention also relates to the process for the preparation of trehalose phosphorylase, and trehalose or .alpha.-D-glucose 1-phosphate with said trehalose phosphorylase.

    摘要翻译: 本发明提供高度热稳定的海藻糖磷酸酶。 本发明的海藻糖磷酸酶可以由培养的微生物混合物获得并且是高度热稳定的,并且通过对海藻糖和无机磷酸或其盐的作用产生α-D-葡萄糖1-磷酸酯和D-葡萄糖,或 通过对α-D-葡萄糖1-磷酸和D-葡萄糖的作用的海藻糖。 本发明还涉及用所述海藻糖磷酸化酶制备海藻糖磷酸化酶,海藻糖或α-D-葡萄糖1-磷酸的方法。

    Process for producing 2,6-dihydroxynaphthalene and
2,6-diacetoxynaphthalene
    7.
    发明授权
    Process for producing 2,6-dihydroxynaphthalene and 2,6-diacetoxynaphthalene 失效
    制备2,6-二羟基萘和2,6-二乙酰氧基萘的方法

    公开(公告)号:US4814521A

    公开(公告)日:1989-03-21

    申请号:US89661

    申请日:1987-08-26

    CPC分类号: C07C37/08 C07C37/50

    摘要: Disclosed herein is a process for producing 2,6-dihydroxynaphthalene which comprises oxidizing 2,6-di(2-hydroxy-2-propyl)naphthalene in acetonitrile, 1,4-dioxane or a mixture thereof with hydrogen peroxide in the presence of an inorganic acid or a solid acid at a temperture in the range of room temperature to the boiling point of the solution of the 2,6-di(2-hydroxy-2-propyl)naphthalene in acetonitrile or 1,4-dioxane, the acetonitrile, 1,4-dioxane or a mixture thereof being used in an amount of 3 to 30 ml to one gram of the 2,6-di(2-hydroxy-2-propyl)naphthalene.

    摘要翻译: 本文公开了一种生产2,6-二羟基萘的方法,其包括在乙腈,1,4-二恶烷或其与过氧化氢的混合物中,在二氯甲烷存在下,将2,6-二(2-羟基-2-丙基) 无机酸或固体酸在室温至2,6-二(2-羟基-2-丙基)萘在乙腈或1,4-二恶烷溶液中的温度范围内的温度下,乙腈 ,1,4-二恶烷或其混合物的用量为3至30ml至1克2,6-二(2-羟基-2-丙基)萘。

    Process for producing trehalose
    9.
    发明授权
    Process for producing trehalose 失效
    生产海藻糖的方法

    公开(公告)号:US5565341A

    公开(公告)日:1996-10-15

    申请号:US285001

    申请日:1994-08-02

    IPC分类号: C12P19/12 C12N9/10

    CPC分类号: C12P19/12

    摘要: A process for producing trehalose from inexpensive saccharide raw materials via an enzymic method uses stable enzymes with high productivity. The process includes incubating a saccharide raw material and an inorganic phosphoric acid and/or a salt thereof in the presence of phosphorylase to produce .alpha.-glucose 1-phosphate, and contacting the produced .alpha.-glucose 1-phosphate with glucose in the presence of a trehalose phosphorylase to produce trehalose. The isolation and purification of trehalose is easier in comparison to conventional fermentation methods.

    摘要翻译: 通过酶法从廉价糖原料生产海藻糖的方法以高生产率使用稳定的酶。 该方法包括在磷酸化酶存在下孵育糖原料和无机磷酸和/或其盐以产生α-葡萄糖1-磷酸酯,并在生产α-葡萄糖的情况下使所生产的α-葡萄糖-1-磷酸酯与葡萄糖接触 海藻糖磷酸化酶产生海藻糖。 与常规发酵方法相比,海藻糖的分离和纯化更容易。