Hamelin Olivier, Rimboud Mickael, Pécaut Jacques, Fontecave Marc
Laboratoire de Chimie et Biologie des Métaux, iRTSV, Université Joseph Fourier/CEA/CNRS, CEA Grenoble, 17 avenue des Martyrs, 38054 Grenoble cedex, France.
Inorg Chem. 2007 Jun 25;46(13):5354-60. doi: 10.1021/ic7005502. Epub 2007 May 26.
The mononuclear [Ru(bpy)(2)(bpym)]PF(6) complex (bpy = 2,2'-bipyridine; bpym = 2,2'-bipyrimidine) has been prepared in its enantiopure Lambda form. Because of the chelating property of the bipyrimidine moiety, it is possible to use this chiral-at-metal complex as a chiral inorganic ligand for a second metal cation acting as a catalytic center. Here we report the synthesis and the structural characterization of a novel dinuclear Lambda-(bpy)(2)Ru(bpym)RuCl(p-cymene) compound (1). The asymmetric-inducing properties of the enantiopure chiral-at-metal metalloligand have been probed during asymmetric transfer hydrogenation to ketones catalyzed by 1. This provides one of the very few illustrations of the potential of this original class of chiral inorganic ligands.
单核配合物[Ru(bpy)(2)(bpym)]PF(6)（bpy = 2,2'-联吡啶；bpym = 2,2'-联嘧啶）已以对映体纯的Λ形式制备出来。由于联嘧啶部分的螯合性质，有可能将这种金属手性配合物用作第二个充当催化中心的金属阳离子的手性无机配体。在此，我们报告了一种新型双核Λ-(bpy)(2)Ru(bpym)RuCl(p-异丙苯)化合物（1）的合成及结构表征。在由1催化的酮的不对称转移氢化反应中，已对映体纯的金属手性金属配体的不对称诱导性质进行了探究。这为这类原始的手性无机配体的潜力提供了极少数例证之一。
