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    Coupling of two arenes with selenium dioxide to give a selenobiaryl ether
    2.
    发明授权
    Coupling of two arenes with selenium dioxide to give a selenobiaryl ether 有权

    公开(公告)号：US10106497B2

    公开(公告)日：2018-10-23

    申请号：US15157934

    申请日：2016-05-18

    申请人： EVONIK DEGUSSA GMBH

    发明人： Katrin Marie Dyballa ,  Robert Franke ,  Siegfried R Waldvogel ,  Thomas Quell ,  Michael Mirion

    IPC分类号： C07C391/02

    摘要： The present invention relates to a method for coupling two arenes with selenium dioxide to give a selenobiaryl ether. The method of the present invention includes: adding a first arene to the reaction mixture, adding a second arene to the reaction mixture, adding selenium dioxide to the reaction mixture, adding an acid having a pKa in the range from 0 to 5 to the reaction mixture, and adjusting the reaction temperature of the reaction mixture such that the first arene and the second arene are converted to a selenobiaryl ether. The present invention also relates to novel selenobiaryl ethers.

    Process for preparing 2,2′-biphenols using selenium dioxide
    5.
    发明授权
    Process for preparing 2,2′-biphenols using selenium dioxide 有权
    使用二氧化硒制备2,2'-联苯酚的方法

    公开(公告)号：US09517986B2

    公开(公告)日：2016-12-13

    申请号：US14719900

    申请日：2015-05-22

    申请人： Evonik Degussa GmbH

    发明人： Katrin Marie Dyballa ,  Robert Franke ,  Dirk Fridag ,  Siegfried R. Waldvogel ,  Thomas Quell ,  Michael Mirion

    IPC分类号： C07C37/11

    CPC分类号： C07C37/11 ,  C07C39/15

    摘要： A process for preparing a 2,2′-biphenol, proceeds by a) adding a first phenol to a reaction mixture, b) adding a second phenol to the reaction mixture, c) adding selenium dioxide to the reaction mixture, d) adding an acid having a pKa in the range from 0.0 to 5.0 to the reaction mixture, and e) heating the reaction mixture such that the first phenol and the second phenol are converted to said 2,2′-biphenol.

    摘要翻译： 制备2,2'-联苯酚的方法是由a）向反应混合物中加入第一酚，b）向反应混合物中加入第二酚，c）向反应混合物中加入二氧化硒，d） 对反应混合物具有0.0-5.0的pKa的酸，以及e）加热反应混合物使得第一酚和第二酚被转化成所述的2,2'-联苯酚。