Rhodium and Ruthenium Complexes of 1,1′‐Bis(phosphetano)ferrocenes: Structural Characterisation and Catalytic Behaviour

Rhodium and Ruthenium Complexes of 1,1′‐Bis(phosphetano)ferrocenes: Structural Characterisation and Catalytic Behaviour
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1,1-双(膦基)二茂铁铑和钌配合物:结构表征和催化行为

DOI:
10.1002/ejic.200300051
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发表时间:
2003
影响因子:
2.3
通讯作者:
J. Genêt
J. Genêt
中科院分区:
化学3区
文献类型:
--
作者:
A. Marinetti;Francis Labrue;B. Pons;S. Jus;L. Ricard;J. Genêt

文献摘要

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首次报道了1,1 ′-双(磷杂环己基)二茂铁1(FerroTANEs)-即[{(S,S)-iPr-1} RuCl 2 Py 2]和[{(S,S)-iPr-1}Rh(COD)OTf]-的钌和铑配合物的结构表征。X射线衍射数据表明,钌配合物和铑螯合物均采用δ构象,这是由于磷杂环丁烷部分的(S,S)构型的结果。钌配合物以中等到高的对映选择性促进β-酮酯的催化氢化。在N-乙酰氨基肉桂酸甲酯的加氢反应中,将化合物1的铑配合物与其它磷杂环丁烷基催化剂进行了比较。(© Wiley-VCH Verlag GmbH & Co. KGaA,69451魏因海姆,德国,2003)
The first structural characterisation of ruthenium and rhodium complexes of the 1,1′-bis(phosphetano)ferrocenes 1 (FerroTANEs) − namely [{(S,S)-iPr-1}RuCl2Py2] and [{(S,S)-iPr-1}Rh(COD)OTf] − is reported. X-ray data show that the ruthenium complex and the rhodium chelate complex both adopt δ conformations, as a result of the (S,S) configuration of the phosphetane moiety. The ruthenium complexes promote the catalytic hydrogenation of β-keto esters with moderate to high enantioselectivities. The behaviour of the rhodium complexes of 1 is compared with that of other phosphetane-based catalysts in the hydrogenation of methyl N-acetamidocinnamate. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)