利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.03 秒)

    Process for the preparation of N-substituted cyclic imides
    3.
    发明授权
    Process for the preparation of N-substituted cyclic imides 失效
    制备N-取代的环状酰亚胺的方法

    公开(公告)号：US5773630A

    公开(公告)日：1998-06-30

    申请号：US595982

    申请日：1996-02-06

    申请人： Torsten Groth ,  Karl-Erwin Piejko ,  Winfried Joentgen ,  Josef Kasbauer ,  Bernd Alig ,  Werner Struver

    发明人： Torsten Groth ,  Karl-Erwin Piejko ,  Winfried Joentgen ,  Josef Kasbauer ,  Bernd Alig ,  Werner Struver

    IPC分类号： C07D207/40 ,  C07D207/416 ,  C07D207/44 ,  C07D207/444 ,  C07D207/452 ,  C07D209/48 ,  C07D207/36

    CPC分类号： C07D207/452 ,  C07D207/40

    摘要： N-Substituted cyclic imides are obtained by reacting a cyclic acid anhydride with an amine in the presence of a solvent and an acid catalyst at 80.degree. to 200.degree. C. and with removal of the water formed, it being particularly advantageous to carry out this reaction in the presence of a stabilizer and an inert, dipolar aprotic cosolvent, optionally to add an inert organic solvent of low or zero polarity to the reaction mixture present after the reaction, to add a non-aqueous base in an amount of 0.5 to 50% by weight, based on the cyclic anhydride of the formula (II) used, and to separate off the precipitate formed to give a filtrate containing the N-substituted cyclic imide.

    摘要翻译： N-取代的环状酰亚胺通过使环酸酐与胺在溶剂和酸催化剂的存在下在80℃至200℃下反应并除去形成的水而获得，特别有利的是进行该 在稳定剂和惰性非质子助溶剂的存在下反应，任选地向反应后存在的反应混合物中加入低或零极性的惰性有机溶剂，加入0.5至50的非水性碱 基于所使用的式（II）的环状酸酐，并分离形成的沉淀物，得到含有N-取代的环状酰亚胺的滤液。

    Process for the preparation of N-(ortho-alkylphenyl)-imides
    4.
    发明授权
    Process for the preparation of N-(ortho-alkylphenyl)-imides 失效
    制备N-（邻 - 烷基苯基） - 酰亚胺的方法

    公开(公告)号：US5684163A

    公开(公告)日：1997-11-04

    申请号：US595463

    申请日：1996-02-05

    申请人： Torsten Groth ,  Bernd-Michael Konig ,  Josef Kasbauer ,  Michael Schwamborn

    发明人： Torsten Groth ,  Bernd-Michael Konig ,  Josef Kasbauer ,  Michael Schwamborn

    IPC分类号： C07D207/404 ,  C07D207/40 ,  C07D207/44 ,  C07D207/444 ,  C07D207/448 ,  C07D207/452 ,  C07D207/456

    CPC分类号： C07D207/452 ,  C07D207/40

    摘要： A process for the preparation of a N-)ortho-alkylphenyl)-imide of the formula ##STR1## in which R.sup.1 to R.sup.9 is defined in the specification which comprises reacting a cyclic anhydride of the formula ##STR2## wherein R.sup.6 to R.sup.9 are difined in the specification with an amine of the formula ##STR3## optionally in the presence of an acid catalyst and optionally in the presence of a solvent which is immiscible or only slightly miscible with water but can form an azeotrope with water, at a temperature between 100.degree. to 200.degree. C. under conditions so that the water formed during the reaction is removed from the reaction mixture without the addition of a polymerization inhibitor or a dipolar solvent. The final products are used as intermediates to prepare heat-stable plastics as well as intermediates to prepare pharmaceutical and agricultural chemicals.

    摘要翻译： 制备式（I）的N-）邻 - 烷基苯基） - 酰亚胺的方法，其中R 1至R 9在本说明书中定义，其包括使下式的环状酸酐（II） 其中R6至R9在本说明书中与式（III）的胺任选在酸催化剂存在下，任选在与水不混溶或仅与水轻微混溶的溶剂存在下， 与水共沸，在100至200℃的温度条件下，使得在反应期间形成的水从反应混合物中除去而不加入阻聚剂或偶极溶剂。 最终产品用作制备热稳定塑料的中间体以及制备药物和农药的中间体。

    Process for the sulphoxidation of N-paraffins
    8.
    发明授权
    Process for the sulphoxidation of N-paraffins 失效
    N-PARAFFINS的硫化过程

    公开(公告)号：US5096625A

    公开(公告)日：1992-03-17

    申请号：US591659

    申请日：1990-10-02

    申请人： Josef Kasbauer ,  Helmut Fiege

    发明人： Josef Kasbauer ,  Helmut Fiege

    IPC分类号： C07C303/14 ,  C07C309/04

    CPC分类号： C07C303/14

    摘要： Aliphatic sulphonic acids can be prepared by reacting n-paraffins with SO.sub.2 and O.sub.2 under UV irradiation with high selectivity even at conversions of up to 12 mol % if an amount of water is added which is appropriate to ensure that after the reaction has commenced and the stationary state has been reached, the sulphoxidation proceeds in homogeneous phase.

    摘要翻译： 脂肪族磺酸可以通过在UV照射下以高选择性使正链烷烃与SO 2和O 2反应来制备，即使加入适量的水也可以达到12mol％的转化率，这是适当的，以确保在反应开始后 已经达到稳态，均匀相进行亚砜化。