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124 条记录 (耗时 0.03 秒)

    Method for producing vicinal diols or polyols
    1.
    发明授权
    Method for producing vicinal diols or polyols 失效
    邻位二醇或多元醇的生产方法

    公开(公告)号：US06281394B1

    公开(公告)日：2001-08-28

    申请号：US09508506

    申请日：2000-03-23

    申请人： Alfred Oftring ,  Thomas Bogenstätter ,  Christian Ott

    发明人： Alfred Oftring ,  Thomas Bogenstätter ,  Christian Ott

    IPC分类号： C07C2700

    CPC分类号： C07C29/48 ,  C07C29/095 ,  C07C67/05 ,  C07C69/08 ,  C07C31/20

    摘要： A process for preparing vicinal diols or polyols from an organic reaction mixture containing formic esters of vicinal diols or polyols, in which water is added to the reaction mixture, without addition of bases, and the formic esters are hydrolyzed in a subsequent thermal treatment, the aqueous formic acid is removed, and vicinal diols or polyols remain behind.

    摘要翻译： 从含有邻位二醇或多元醇的有机反应混合物制备邻位二醇或多元醇的方法，其中将水加入到反应混合物中而不添加碱，并且甲酸酯在随后的热处理中水解， 去除含水甲酸，邻位二醇或多元醇残留在后面。

    Method for producing (S,S)-N,N′-ethylenediaminedisuccinic acid, analogous compounds or salts thereof
    4.
    发明授权
    Method for producing (S,S)-N,N′-ethylenediaminedisuccinic acid, analogous compounds or salts thereof 失效
    （S，S）-N，N'-乙二胺二琥珀酸的类似化合物或其盐的制备方法

    公开(公告)号：US06437181B1

    公开(公告)日：2002-08-20

    申请号：US09581530

    申请日：2000-11-27

    申请人： Alfred Oftring ,  Christian Ott ,  Birgit Potthoff-Karl

    发明人： Alfred Oftring ,  Christian Ott ,  Birgit Potthoff-Karl

    IPC分类号： C07C22900

    CPC分类号： C07C303/24 ,  C07C227/18 ,  C07C305/06 ,  C07C229/26

    摘要： The invention describes a process for the preparation of (S,S)-N,N′-ethylenediaminedisuccinic acid or analogous compounds or their salts by reaction of L-aspartic acid, L-glutamic acid or L-cysteic acid with 1,2-bissulfooxyethane, 1,3,2-dioxathiolane 2,2-dioxide or mixtures thereof or 1,3-bissulfooxy-2-hydroxypropane in the presence of a base, and optional subsequent acidification with an acid. Also described is a process for the preparation of (S,S)-N,N′-ethylenediaminedisuccinic acid or analogous compounds or their salts by reaction of N-(2-sulfooxyethyl)-L-aspartic acid or its salts with L-aspartic acid or corresponding compounds based on L-glutamic acid, L-cysteic acid and/or 1,3-bissulfooxy-2-hydroxypropane in the presence of a base, and optional subsequent acidification with an acid.

    摘要翻译： 本发明描述了通过L-天冬氨酸，L-谷氨酸或L-半胱氨酸与1,2-二氨基丁酸的反应来制备（S，S）-N，N'-乙二胺二琥珀酸或类似化合物或其盐的方法， 双磺酰氧基乙烷，1,3,2-二氧硫杂环戊烷2,2-二氧化物或其混合物或1,3-双磺酰氧基-2-羟基丙烷在碱存在下进行，随后可任意用酸酸化。还描述了一种制备方法 通过N-（2-磺氧基乙基）-L-天冬氨酸或其盐与L-天冬氨酸或相应的基于L-天冬氨酸的化合物的反应而产生的（S，S）-N，N'-乙二胺二琥珀酸或类似化合物或其盐， 谷氨酸，L-半胱氨酸和/或1,3-双磺酰氧基-2-羟基丙烷，在碱的存在下，任选随后用酸酸化。

    Process for preparing aminopolycarboxylates proceeding from amino acids
    9.
    发明授权
    Process for preparing aminopolycarboxylates proceeding from amino acids 失效
    由氨基酸制备氨基多羧酸盐的方法

    公开(公告)号：US08785685B2

    公开(公告)日：2014-07-22

    申请号：US13430105

    申请日：2012-03-26

    申请人： Robert Baumann ,  Markus Christian Biel ,  Axel Franzke ,  Thomas Heidenfelder ,  Paul Klingelhoefer ,  Alfred Oftring

    发明人： Robert Baumann ,  Markus Christian Biel ,  Axel Franzke ,  Thomas Heidenfelder ,  Paul Klingelhoefer ,  Alfred Oftring

    IPC分类号： C07C227/18 ,  C07C227/02

    CPC分类号： C07C227/18 ,  C07C227/02 ,  C07C227/12 ,  C07C229/16 ,  C07C229/12

    摘要： The present invention relates to a process for preparing aminopolycarboxylates proceeding from an amino acid which, in a first process step is reacted with ethylene oxide to give an intermediate mixture comprising the corresponding dialkanolamine, and then the intermediate mixture, in a second process step is converted catalytically using a base to the corresponding aminopolycarboxylate, wherein the amino acid, before the reaction with ethylene oxide in the first process step, is supplied to a partial neutralization with 0.70 to 0.99 equivalent of base per acid group, or, in the first process step, an amino acid which has already been partly neutralized with 0.70 to 0.99 equivalent of base per acid group is used.

    摘要翻译： 本发明涉及从氨基酸制备氨基多羧酸盐的方法，该方法在第一工艺步骤与环氧乙烷反应得到包含相应的二链烷醇胺的中间体混合物，然后在第二工艺步骤中将中间体混合物转化 催化地将碱用于相应的氨基多羧酸盐，其中在与第一工艺步骤中的环氧乙烷反应之前，将氨基酸以0.70-0.99当量的碱/酸组供应至部分中和，或者在第一工艺步骤 使用已经用0.70〜0.99当量碱的每个酸基部分中和的氨基酸。