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2003•European Journal of Inorganic ChemistryRequires access

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

Angéla Marinetti, Francis Labrue, Bénédicte Pons, Sébastien Jus, Louis Ricard, Jean‐Pierre Genêt

Open publisher page 26 citations

Abstract

Abstract 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)

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Abstract 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)

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Available abstract

Abstract 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)

Key concepts: Ruthenium, Rhodium, Chemistry, Moiety, Catalysis, Chelation, Medicinal chemistry, Stereochemistry

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