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85 条记录 (耗时 0.027 秒)

    Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds
    6.
    发明授权
    Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds 有权

    公开(公告)号：US10202329B2

    公开(公告)日：2019-02-12

    申请号：US15213453

    申请日：2016-07-19

    申请人： EVONIK DEGUSSA GMBH

    发明人： Kaiwu Dong ,  Helfried Neumann ,  Ralf Jackstell ,  Matthias Beller ,  Robert Franke ,  Dieter Hess ,  Katrin Marie Dyballa ,  Dirk Fridag ,  Frank Geilen

    IPC分类号： C07F9/58 ,  C07C67/38 ,  C07F9/572 ,  C07F9/6506 ,  C07F15/00 ,  B01J31/24 ,  B01J31/22 ,  C07F9/655 ,  C07F9/6553 ,  C07F17/02

    摘要： The invention relates to a compound of formula (I) where R1 and R3 are each a heteroaryl radical having five ring atoms, R2 and R4 are each independently selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C6-C20)-aryl; R1 and R3 may each independently be substituted by one or more substituents selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —O—(C1-C12)-alkyl, —O—(C1-C12)-alkyl-(C6-C20)-aryl, —O—(C3-C12)-cycloalkyl, —S—(C1-C12)-alkyl, —S—(C3-C12)-cycloalkyl, —COO—(C1-C12)-alkyl, —COO—(C3-C12)-cycloalkyl, —CONH—(C1-C12)-alkyl, —CONH—(C3-C12)-cycloalkyl, —CO—(C1-C12)-alkyl, —CO—(C3-C12)-cycloalkyl, —N—[(C1-C12)-alkyl]2, —(C6-C20)-aryl, —(C6-C20)-aryl-(C1-C12)-alkyl, —(C6-C20)-aryl-O—(C1-C12)-alkyl, —(C3-C20)-heteroaryl, —(C3-C20)-heteroaryl-(C1-C12)-alkyl, —(C3-C20)-heteroaryl-O—(C1-C12)-alkyl, —COOH, —OH, —SO3H, —NH2, halogen; and R2 and R4, if they are —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl or —(C6-C20)-aryl, may each independently be substituted by one or more substituents selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —O—(C1-C12)-alkyl, —O—(C1-C12)-alkyl-(C6-C20)-aryl, —O—(C3-C12)-cycloalkyl, —S—(C1-C12)-alkyl, —S—(C3-C12)-cycloalkyl, —COO—(C1-C12)-alkyl, —COO—(C3-C12)-cycloalkyl, —CONH—(C1-C12)-alkyl, —CONH—(C3-C12)-cycloalkyl, —CO—(C1-C12)-alkyl, —CO—(C3-C12)-cycloalkyl, —N—[(C1-C12)-alkyl]2, —(C6-C20)-aryl, —(C6-C20)-aryl-(C1-C12)-alkyl, —(C6-C20)-aryl-O—(C1-C12)-alkyl, —(C3-C20)-heteroaryl, —(C3-C20)-heteroaryl-(C1-C12)-alkyl, —(C3-C20)-heteroaryl-O—(C1-C12)-alkyl, —COOH, —OH, —SO3H, —NH2, halogen; excluding the compounds of the formulae (1) and (2) The invention further relates to precursors for preparation of the compound according to the invention, to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation.

    Coupling of two arenes with selenium dioxide to give a selenobiaryl ether
    8.
    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.