Production process of diphosphine oxide and diphosphonate
    1.
    发明授权
    Production process of diphosphine oxide and diphosphonate 有权
    二氧化膦和二膦酸盐的生产工艺

    公开(公告)号:US06472539B1

    公开(公告)日:2002-10-29

    申请号:US09899207

    申请日:2001-07-06

    IPC分类号: C07F940

    CPC分类号: C07F9/65517

    摘要: A process for producing a diphosphine oxide or diphosphonate represented by formula (1) as defined, which comprises treating, with a base, a phosphine compound represented by formula (2) as defined and adding the thus-treated phosphine compound to a nonpolar solvent having an oxidative metal compound suspended therein so as to effect dimerization. The present invention makes it possible to produce, conveniently, in a high yield and safely, a diphosphine oxide or diphosphonate which is an intermediate for producing a diphosphine compound useful as a ligand of a metal complex serving as a catalyst for asymmetric synthesis reaction.

    摘要翻译: 一种制备由式(1)表示的二膦氧化物或二膦酸盐的方法,该方法包括用碱处理如上定义的式(2)表示的膦化合物,并将如此处理的膦化合物加入到具有 悬浮在其中以实现二聚化的氧化金属化合物。 本发明使得可以以高产率和安全地生产作为用作不对称合成反应催化剂的金属络合物的配位体的二膦化合物的中间体的二氧化膦或二膦酸盐的方法。

    Process for producing optically active alcohol
    3.
    发明授权
    Process for producing optically active alcohol 有权
    光学活性醇的制造方法

    公开(公告)号:US06492545B2

    公开(公告)日:2002-12-10

    申请号:US09909803

    申请日:2001-07-23

    IPC分类号: C07C6966

    摘要: A novel process in which an optically active alcohol compound having a desired absolute configuration and a high optical purity can be obtained by asymmetrically hydrogenating a &bgr;-keto acid compound through a simple operation. An optically active alcohol represented by general formula (III) as defined is obtained by asymmetrically hydrogenating a &bgr;-keto ester compound represented by general formula (I) as defined in the presence of at least one ruthenium complex having as a ligand an optically active tertiary diphosphine compound represented by general formula (II) as defined.

    摘要翻译: 通过简单的操作通过不对称氢化β-酮酸化合物,可以获得具有所需绝对构型和高光学纯度的光学活性醇化合物的新方法。 由通式(III)表示的光学活性醇通过不对称氢化由通式(I)表示的β-酮酯化合物获得,如在至少一种具有光学活性第三级 如通式(Ⅱ)所示的二膦化合物。

    Ruthenium-phosphine complex and method for producing the same
    4.
    发明授权
    Ruthenium-phosphine complex and method for producing the same 有权
    钌膦络合物及其制备方法

    公开(公告)号:US06313317B1

    公开(公告)日:2001-11-06

    申请号:US09273260

    申请日:1999-03-22

    IPC分类号: C07F930

    摘要: Disclosed is a ruthenium-phosphine complex usable as the catalyst giving a high enantiomer excess in an asymmetric reaction and a method for producing the complex. The ruthenium-phosphine complex is represented by formula (1): [{(RuX(L)}2(&mgr;-X)3]−[R22NH2]+  (1) wherein R2 represents hydrogen, alkyl, cycloalkyl or benzyl and L represents a diphosphine ligand represented by formula (2): wherein R1 represents an optionally substituted phenyl group and X represents a halogen atom. The method for preparing a ruthenium-phosphine complex represented by formula (1) is characterized in that a ruthenium complex represented by the formula [RuX(arene)(L)]X and an ammonium salt represented by the formula R22NH.HX are reacted with each other.

    摘要翻译: 公开了可用作在不对称反应中给出高对映体过量的催化剂的钌膦络合物和制备该络合物的方法。 钌膦配合物由式(1)表示:其中R2表示氢,烷基,环烷基或苄基,L表示由式(2)表示的二膦配体:其中R1表示任选取代的苯基,X表示卤素原子 。 由式(1)表示的钌 - 膦配合物的制备方法的特征在于,由式[RuX(芳烃)(L)] X表示的钌络合物和由式R22NH.HX表示的铵盐与 彼此。

    Method for producing optically active diphosphine compounds
    8.
    发明授权
    Method for producing optically active diphosphine compounds 失效
    光学活性二膦化合物的制备方法

    公开(公告)号:US5693868A

    公开(公告)日:1997-12-02

    申请号:US740506

    申请日:1996-10-30

    摘要: The present invention provides a method for producing novel optically active diphosphine compounds �2,2'-bis(di-substituted phosphino)-1,1'-binaphthyl compounds! having a selectivity (chemoselectivity or enantioselectivity) and catalytic activity different from those of conventional BINAP compounds. In a method of the present invention for producing an optically active diphosphine compound (i.e., 2,2-bis(di-substituted phosphino)-1,1'-binaphthyl), 2,2'-bis(trifluoromethanesulfonyloxy)-1,1'-binaphthyl is reacted, in the presence of a transition metal-phosphine complex, with a phosphineoxide compound represented by the following general formula: A.sub.2 P(O)H wherein A represents a phenyl group; a mono- to tri-substituted phenyl group, wherein each substituent in the substituted phenyl group is individually selected from the group consisting of a halogen atom, a lower alkyl group, a lower alkoxy group or a lower halogenated-alkoxy group such that one or more of the substituents may be the same or different; a naphthyl group; a lower-alkyl naphthyl group; or a lower-alkoxy naphthyl group.

    摘要翻译: 本发明提供了具有选择性(化学选择性或对映体选择性)和催化活性不同的新的光学活性二膦化合物[2,2'-双(二取代膦基)-1,1'-联萘化合物] 常规BINAP化合物。 在本发明的制备光学活性二膦化合物(即2,2-双(二取代膦基)-1,1'-联萘)的方法中,2,2'-双(三氟甲磺酰氧基)-1,1 在过渡金属 - 膦配合物的存在下,与通式为:A2P(O)H表示的膦氧化物化合物反应,其中A表示苯基; 取代苯基中的每个取代基分别选自卤素原子,低级烷基,低级烷氧基或低级卤代 - 烷氧基,使得一个或多个取代的苯基 更多的取代基可以相同或不同; 萘基; 低级烷基萘基; 或低级烷氧基萘基。