PROCESS FOR THE HYDROGENATION OF IMINES
    25.
    发明申请
    PROCESS FOR THE HYDROGENATION OF IMINES 审中-公开
    加氢方法

    公开(公告)号:US20090036713A1

    公开(公告)日:2009-02-05

    申请号:US12282189

    申请日:2007-02-09

    CPC classification number: C07C209/52 C07B2200/07 C07C211/48

    Abstract: The present invention relates to a process for the hydrogenation of imines with hydrogen in the presence of iridium catalysts. In particular the present invention relates to a process for the hydrogenation of imines with hydrogen under elevated pressure in the presence of an iridium catalysts and with or without an inert solvent, wherein the reaction mixture comprises a phosphonium chloride, bromide or iodide in the presence or in the absence of an acid, which can be an organic or inorganic acid, soluble or insoluble in the reaction mixture. Suitable imines are especially those that contain at least one (Formula I) group. If the groups are substituted asymmetrically and are thus compounds having a prochiral ketimine group, it is possible in the process according to the invention for mixtures of optical isomers or pure optical isomers to be formed if enantioselective or diastereoselective iridium catalysts are used.

    Abstract translation: 本发明涉及在铱催化剂存在下用氢氢化亚胺的方法。 特别地,本发明涉及在铱催化剂存在下,在惰性溶剂存在下,在高压下用氢气氢化亚胺的方法,其中反应混合物包含氯化鏻,溴化物或碘化鏻, 在不存在酸的情况下,其可以是可溶于或不溶于反应混合物的有机或无机酸。 合适的亚胺特别是含有至少一个(式I)基团的亚胺。 如果这些基团被不对称取代并且因此是具有前手性酮亚胺基团的化合物,则在本发明的方法中,如果使用对映选择性或非对映异构选择性铱催化剂,则可以形成光学异构体或纯光学异构体的混合物。

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