IRON(II) CATALYSTS CONTAINING DIIMINO-DIPHOSPHINE TETRADENTATE LIGANDS AND THEIR SYNTHESIS
    1.
    发明申请
    IRON(II) CATALYSTS CONTAINING DIIMINO-DIPHOSPHINE TETRADENTATE LIGANDS AND THEIR SYNTHESIS 有权
    铁(II)含有二胺 - 二氢吡啶四氢化物配体的催化剂及其合成

    公开(公告)号:US20100145087A1

    公开(公告)日:2010-06-10

    申请号:US12609955

    申请日:2009-10-30

    摘要: New hexa-coordinate iron (II) complexes comprising compounds of formula (I) are described. These compounds comprise a tetradentate ligand with donor atoms comprising nitrogen and phosphorus. These complexes are shown for the first time to be useful catalysts for the hydrogenation of ketones, aldehydes, or imines to produce alcohols or amines, and the asymmetric hydrogenation of prochiral ketones or imines to produce non-racemic alcohols or amines. The source of the hydrogen can be hydrogen gas or a hydrogen-donating molecule such as isopropanol or hydrogen-donating mixture such as formic acid and an amine depending on the structure of the catalyst. In certain embodiments, the axial ligands on the catalyst comprise organonitrile ligands, carbonyl ligands, isonitrile ligands, or combinations thereof. The catalysts and the preparation thereof are disclosed. A reaction using phosphine and diamine precursors that is templated by the iron ion is the preferred route to the catalysts.

    摘要翻译: 描述了包含式(I)化合物的新的六配位铁(II)络合物。 这些化合物包括具有包含氮和磷的供体原子的四齿配体。 这些配合物首次显示为用于氢化酮,醛或亚胺以制备醇或胺的有用催化剂,以及前手性酮或亚胺的不对称氢化以产生非外消旋醇或胺。 根据催化剂的结构,氢源可以是氢气或供氢分子如异丙醇或供氢混合物如甲酸和胺。 在某些实施方案中,催化剂上的轴向配体包含有机腈配体,羰基配体,异腈配体或其组合。 公开了催化剂及其制备方法。 使用由铁离子模板化的膦和二胺前体的反应是催化剂的优选途径。