Method for producing aqueous preparations of complexes of platinum group metals

    公开(公告)号:US11702437B2

    公开(公告)日:2023-07-18

    申请号:US17858256

    申请日:2022-07-06

    IPC分类号: C07F15/00

    摘要: The invention relates to a method for producing aqueous preparations of complexes of platinum group metals (PGM) Pt, Pd, Rh and Ir having the general formula [MA/MB/MC (L)a (H2O)b (O2−)c(OH−)d](OH—)e(H+)f, wherein MA=PtII or PdII, MB=PtIV, MC=Rh or Ir, L is a neutral monodentate or bidentate donor ligand, and a is an integer between 1 and 4 (or 2) and/or between 1 and 6 (or 3), b is an integer between 0 and 3 (or 5), c is an integer between 0 and 3 (or 4), d is an integer between 0 and 3 (or 5), e is an integer between 0 and 2 (or 3 or 4) and f is an integer between 0 and 4 (or 5). In the method according to the invention, the hydroxo complexes H2Pd(OH)4 (in the case of MA=PdII), H2Pt(OH)6 (in the case of MA=PtII and MB=PtIV) or H3MC(OH)6 (for MC=RhIII IrIII) are converted in the presence of the donor ligands, wherein at least one hydroxo group of the hydro complex is exchanged. Preferably, the reaction occurs at temperatures in the range of 40 to 110° C. with a reaction time of between 2 and 24 hours, wherein, where MA=PtII, the conversion additionally occurs in the presence of a reduction agent. The method optionally further comprises an exchange of OH anions bound outside of the complex sphere with other anions (e.g. hydrogen carbonate or carbonate anions). The aqueous preparations contain PGM complexes such as [Pt(en)2](OH)2, [Pt(EA)4](OH)2 or [Rh(NH3)6](OH)3 and are used to produce electroplating baths, heterogeneous catalysts or metal powders, for example.

    PROCESS FOR PREPARING HYDRIDOCARBONYLTRIS(TRIPHENYLPHOSPHINE)RHODIUM(I)

    公开(公告)号:US20170198000A1

    公开(公告)日:2017-07-13

    申请号:US15324017

    申请日:2015-07-03

    IPC分类号: C07F15/00

    CPC分类号: C07F15/0073 C07F15/008

    摘要: The present invention relates to a process for preparing hydridocarbonyltris(triphenylphosphine)rhodium(I), RhH(CO)(PPh3)3, also referred to hereinafter as “Rh-hydrido.” An alcoholic suspension of triphenylphosphine is stirred with an Rh(III) chloride precursor at elevated temperature. The Rh(III) chloride precursor used may be rhodium(III) chloride hydrate RhCl3*xH2O or rhodium(III) chloride solution H3[RhCl6]*(H2O)n. After cooling, alcoholic alkali metal hydroxide solution is added, and the mixture is stirred for a few hours. Finally, sparging is effected with CO gas and the Rh-hydrido formed is removed. Rh-hydrido can be prepared by this process on the industrial scale with high yields and at very good quality.

    Organic metal complex and process for preparing amine compound
    7.
    发明授权
    Organic metal complex and process for preparing amine compound 有权
    有机金属络合物及其制备方法

    公开(公告)号:US09211533B2

    公开(公告)日:2015-12-15

    申请号:US13911188

    申请日:2013-06-06

    摘要: [Problem]The present invention aims to provide a novel organometallic compound that can be used as a general-use highly active catalyst with superior selectivity for functional groups.[Means for Solving Problem]The present invention relates to an organometallic compound having a novel specific structure of general formula (1): and to a general-use highly active catalyst used in reductive amination reaction with superior selectivity for functional groups that comprises said organometallic compound, and to a process for preparing amine compounds by reductive amination reaction using said catalyst.

    摘要翻译: 本发明的目的在于提供一种新的有机金属化合物,其可以用作对官能团具有优异选择性的通用高活性催化剂。 解决问题的手段本发明涉及具有通式(1)的新特异性结构的有机金属化合物:和用于还原胺化反应中的一般用途的高活性催化剂,对包含所述有机金属的官能团具有优异的选择性 化合物,以及通过使用所述催化剂的还原胺化反应制备胺化合物的方法。

    NOVEL ORGANIC METAL COMPLEX AND PROCESS FOR PREPARING AMINE COMPOUND
    10.
    发明申请
    NOVEL ORGANIC METAL COMPLEX AND PROCESS FOR PREPARING AMINE COMPOUND 有权
    新的有机金属复合物和制备胺化合物的方法

    公开(公告)号:US20130338359A1

    公开(公告)日:2013-12-19

    申请号:US13911188

    申请日:2013-06-06

    IPC分类号: B01J31/22 C07C209/78

    摘要: [Problem]The present invention aims to provide a novel organometallic compound that can be used as a general-use highly active catalyst with superior selectivity for functional groups.[Means for Solving Problem]The present invention relates to an organometallic compound having a novel specific structure of general formula (1): and to a general-use highly active catalyst used in reductive amination reaction with superior selectivity for functional groups that comprises said organometallic compound, and to a process for preparing amine compounds by reductive amination reaction using said catalyst.

    摘要翻译: 本发明的目的在于提供一种新的有机金属化合物,其可以用作对官能团具有优异选择性的通用高活性催化剂。 解决问题的手段本发明涉及具有通式(1)的新特异性结构的有机金属化合物:和用于还原胺化反应中的一般用途的高活性催化剂,对包含所述有机金属的官能团具有优异的选择性 化合物,以及通过使用所述催化剂的还原胺化反应制备胺化合物的方法。