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277 条记录 (耗时 0.045 秒)

    PROCESS FOR PREPARING A CYCLIC TERTIARY AMINE
    42.
    发明申请
    PROCESS FOR PREPARING A CYCLIC TERTIARY AMINE 有权
    制备循环胺的方法

    公开(公告)号：US20120095221A1

    公开(公告)日：2012-04-19

    申请号：US13273784

    申请日：2011-10-14

    申请人： Christof Wilhelm Wigbers ,  Johann-Peter Melder ,  Bernd Stein ,  Harald Meißner

    发明人： Christof Wilhelm Wigbers ,  Johann-Peter Melder ,  Bernd Stein ,  Harald Meißner

    IPC分类号： C07D295/03

    CPC分类号： C07D295/03 ,  C07D295/023

    摘要： A process for preparing a cyclic tertiary amine of the formula I where A is a C4-alkylene group, a C5-alkylene group or a —(CH2)2—B—(CH2)2— group, where B is oxygen (O) or an N—R1 radical and R1 is C1-C5-alkyl, aryl or C5-C7-cycloalkyl, and the radical R2 is a linear or branched C2-C16-alkyl, C5-C7-cycloalkyl or C7-C20-aralkyl, in which (i) an amino alcohol II from the group consisting of 1,4-aminobutanol, 1,5-aminopentanol, aminodiglycol (ADG) and aminoethylethanolamine of the formula IIa where R1 is as defined above or hydrogen (H), in which case R1═R2 in the amine I, is reacted with a primary or secondary alcohol R2OH (III) at a temperature in the range from 150 to 270° C. in the liquid phase in the presence of a copper-comprising heterogeneous catalyst in a reactor.

    摘要翻译： 其中A是C 4 - 亚烷基，C 5 - 亚烷基或 - （CH 2）2 -B-（CH 2）2 - 基团，其中B是氧（O））的式I的环状叔胺的方法， 或N-R 1基团，并且R 1是C 1 -C 5 - 烷基，芳基或C 5 -C 7 - 环烷基，并且基团R 2是直链或支链C 2 -C 16 - 烷基，C 5 -C 7 - 环烷基或C 7 -C 20 - 芳烷基， 其中（i）由式IIa的其中R1如上所定义的氢原子（H）的1,4-氨基丁醇，1,5-氨基戊醇，氨基二甘醇（ADG）和氨基乙基乙醇胺组成的组中的氨基醇II，其中 在胺I中的情况R1 = R2在初级醇或仲醇R 2 OH（III）中，在含有铜的非均相催化剂的存在下，在液相中在150-270℃的温度下反应 反应堆。

    Method for producing ethylenediamine
    45.
    发明授权
    Method for producing ethylenediamine 有权
    乙二胺的制备方法

    公开(公告)号：US07915454B2

    公开(公告)日：2011-03-29

    申请号：US12529107

    申请日：2008-02-28

    申请人： Alfred Oftring ,  Kirsten Dahmen ,  Randolf Hugo ,  Thilo Hahn ,  Katrin Baumann ,  Johann-Peter Melder

    发明人： Alfred Oftring ,  Kirsten Dahmen ,  Randolf Hugo ,  Thilo Hahn ,  Katrin Baumann ,  Johann-Peter Melder

    IPC分类号： C07C209/48

    CPC分类号： C07C209/48 ,  C07C211/10

    摘要： The invention relates to a process for preparing ethylenediamine by hydrogenation of aminoacetonitrile over a catalyst, wherein the hydrogenation is carried out in a solution comprising aminoacetonitrile, water in a proportion of from 0 to 60% by weight and a solvent and the aminoacetonitrile comprised in the solution is fed into the reaction vessel at a rate which is not greater than the rate at which the aminoacetonitrile reacts with hydrogen in the hydrogenation.

    摘要翻译： 本发明涉及一种通过氨基乙腈在催化剂上氢化制备乙二胺的方法，其中氢化是在包含氨基乙腈的溶液中，以0至60重量％的比例的水和溶剂和包含在其中的氨基乙腈 溶液以不大于氨基乙腈在氢化中与氢反应的速率进料到反应容器中。

    PROCESS FOR THE SYNTHESIS OF DMAPA
    47.
    发明申请
    PROCESS FOR THE SYNTHESIS OF DMAPA 有权
    合成DMAPA的方法

    公开(公告)号：US20100105952A1

    公开(公告)日：2010-04-29

    申请号：US12683015

    申请日：2010-01-06

    申请人： Martin Ernst ,  Steffen Oehlenschläger ,  Frank Kuhnke ,  Karl-Heinz Roß ,  Roland Deeg ,  Johann-Peter Melder

    发明人： Martin Ernst ,  Steffen Oehlenschläger ,  Frank Kuhnke ,  Karl-Heinz Roß ,  Roland Deeg ,  Johann-Peter Melder

    IPC分类号： C07C209/02 ,  B01J19/00

    CPC分类号： C07C209/48 ,  B01J2219/00006 ,  C07C253/30 ,  C07C211/11 ,  C07C255/24

    摘要： The present invention relates to a process for the industrial preparation of a diamine starting from a corresponding alkenyl nitrile comprising at least one C—C double bond, which comprises the steps (a) reaction of the alkenyl nitrile with a corresponding monoamine in a first reactor so that the monoamine adds exothermically onto the at least one double bond to form an aminoalkyl nitrile, with the monoamine and water being charged initially and the alkenyl nitrile being fed in; (b) evaporation of unreacted alkenyl nitrile and monoamine to increase the concentration of the aminoalkyl nitrile product in the bottoms of the first reactor; (c) transfer of the aminoalkyl nitrile bottom product from step (b) to a second reactor; (d) batchwise catalytic hydrogenation of the aminoalkyl nitrile transferred in step (c) to the diamine in the second reactor, with each batch being obtained by initially charging a catalyst suitable for the hydrogenation of nitriles to amines and also water, the desired diamine and a base, introducing hydrogen into the second reactor and feeding in the aminoalkyl nitrile transferred in step (c); and (e) isolation of the diamine and, if appropriate, repetition of the steps (a) to (e). The invention further relates to an apparatus for preparing these diamines and the use of the apparatuses. A preferred diamine is 3-dimethylaminopropylamine (DMAPA).

    摘要翻译： 本发明涉及从包含至少一个C-C双键的相应链烯基腈开始工业制备二胺的方法，其包括步骤（a）在第一反应器中烯基腈与相应的单胺反应 使得单胺在至少一个双键上放热添加以形成氨基烷基腈，最初加入单胺和水，并加入链烯基腈; （b）蒸发未反应的烯基腈和单胺以增加第一反应器底部氨基烷基腈产物的浓度; （c）将氨基烷基腈底部产物从步骤（b）转移至第二反应器; （d）将步骤（c）中转移的氨基烷基腈分批催化氢化为第二反应器中的二胺，每个批次通过首先将适合于将腈氢化成的催化剂加入到胺中而得到，并且还需要水，所需的二胺和 碱，将氢气引入第二反应器并进料步骤（c）中转移的氨基烷基腈; 和（e）分离二胺，如果合适，重复步骤（a）至（e）。 本发明还涉及一种用于制备这些二胺的装置和该装置的用途。 优选的二胺是3-二甲基氨基丙胺（DMAPA）。

    Method for the production of β-aminopropionic acid derivatives
    49.
    发明授权
    Method for the production of β-aminopropionic acid derivatives 有权
    生产氨基丙酸衍生物的方法

    公开(公告)号：US07674929B2

    公开(公告)日：2010-03-09

    申请号：US12066681

    申请日：2006-09-13

    申请人： Holger Evers ,  Johann-Peter Melder ,  Thomas Preiss ,  Harald Meissner

    发明人： Holger Evers ,  Johann-Peter Melder ,  Thomas Preiss ,  Harald Meissner

    IPC分类号： C07C255/00

    CPC分类号： C07C253/30 ,  C07B43/04 ,  C07C227/06 ,  C07C2601/14 ,  C07C255/24

    摘要： The invention relates to a process for preparing β-aminopropionic acid derivatives by reacting a primary or secondary amine with an acrylic acid derivative, wherein comprises (i) a first primary or secondary amine is provided as an amine of value and reacted with the acrylic acid derivative, to obtain a reaction mixture comprising a first β-aminopropionic acid derivative as a product of value and additionally unconverted acrylic acid derivative, (ii) the unconverted acrylic acid derivative present in the reaction mixture is reacted with a second secondary amine as a scavenger amine virtually fully to give a second β-aminopropionic acid derivative to obtain a reaction mixture comprising the first β-aminopropionic acid derivative as a product of value, the second β-aminopropionic acid derivative and unconverted secondary amine.

    摘要翻译： 本发明涉及一种通过使伯胺或仲胺与丙烯酸衍生物反应来制备β-氨基丙酸衍生物的方法，其中包括（i）第一伯胺或仲胺作为有价值的胺并与丙烯酸反应 酸衍生物，得到包含第一和次氨基丙酸衍生物作为值的产物和另外未转化的丙烯酸衍生物的反应混合物，（ii）将存在于反应混合物中的未转化的丙烯酸衍生物与第二仲胺反应， 一种清除剂胺实际上完全可以得到第二种 - 氨基丙酸衍生物，以获得包含第一种和第二种 - 氨基丙酸衍生物和未转化的仲胺的第一种 - 氨基丙酸衍生物的反应混合物。