Novel ruthenium(II) diamine complexes
Novel ruthenium(II) diamine complexes
The complex cations [Ru(C7H16N2)(C10H14)Cl]+, [Ru(C7H16N2)(C6H6)Cl]+, [Ru(C9H18N2)(C6H6)Cl]+, [Ru(C9H18N2)(C10H14)Cl]+ and [Ru(C14H16N2)(C10H14)Cl]+ have been synthesised from the reaction between the ruthenium-arene complexes [with C6H6 (benzene) or C10H14 (p-cymene)] and the respective chiral diamines [C7H16N2=(S)-(?)-2-aminomethyl-1-ethylpyrrolidine, C9H18N2=(S)-(+)-2-(pyrrolidinylmethyl)-pyrrolidine, or C14H16N2=(1R,2R)-(+)-1,2-diphenylethylenediamine], isolated and characterised as chloride salts using single-crystal X-ray diffraction. All complexes were fully characterised by elemental analysis, mass spectrometry, 13C and 1H NMR, and also found to exhibit catalytic activity in the transfer hydrogenation of acetophenone to 1-phenylethanol at 50 °C (enantiomeric excesses range from ca. 25% to 60%, and conversions from ca. 30% to 50%).
asymmetric transfer hydrogenation, ligands, ketones, catalysis
1247-1255
Jones, Matthew D.
7fc828a3-a068-4b7f-ac05-86ad47843cff
Paz, Filipe A. Almeida
b89c2799-d876-4a39-a4a0-29ca0beca719
Davies, John E.
25155aef-6b39-4c6c-9c90-29ce80981ac8
Raja, Robert
74faf442-38a6-4ac1-84f9-b3c039cb392b
Klinowski, Jacek
1d412175-7923-4340-9df5-a679768b58d3
Johnson, Brian F.G.
4912806f-8ff8-4315-aa16-7701bf48a34a
10 March 2004
Jones, Matthew D.
7fc828a3-a068-4b7f-ac05-86ad47843cff
Paz, Filipe A. Almeida
b89c2799-d876-4a39-a4a0-29ca0beca719
Davies, John E.
25155aef-6b39-4c6c-9c90-29ce80981ac8
Raja, Robert
74faf442-38a6-4ac1-84f9-b3c039cb392b
Klinowski, Jacek
1d412175-7923-4340-9df5-a679768b58d3
Johnson, Brian F.G.
4912806f-8ff8-4315-aa16-7701bf48a34a
Jones, Matthew D., Paz, Filipe A. Almeida, Davies, John E., Raja, Robert, Klinowski, Jacek and Johnson, Brian F.G.
(2004)
Novel ruthenium(II) diamine complexes.
Inorganica Chimica Acta, 357 (4), .
(doi:10.1016/j.ica.2003.10.014).
Abstract
The complex cations [Ru(C7H16N2)(C10H14)Cl]+, [Ru(C7H16N2)(C6H6)Cl]+, [Ru(C9H18N2)(C6H6)Cl]+, [Ru(C9H18N2)(C10H14)Cl]+ and [Ru(C14H16N2)(C10H14)Cl]+ have been synthesised from the reaction between the ruthenium-arene complexes [with C6H6 (benzene) or C10H14 (p-cymene)] and the respective chiral diamines [C7H16N2=(S)-(?)-2-aminomethyl-1-ethylpyrrolidine, C9H18N2=(S)-(+)-2-(pyrrolidinylmethyl)-pyrrolidine, or C14H16N2=(1R,2R)-(+)-1,2-diphenylethylenediamine], isolated and characterised as chloride salts using single-crystal X-ray diffraction. All complexes were fully characterised by elemental analysis, mass spectrometry, 13C and 1H NMR, and also found to exhibit catalytic activity in the transfer hydrogenation of acetophenone to 1-phenylethanol at 50 °C (enantiomeric excesses range from ca. 25% to 60%, and conversions from ca. 30% to 50%).
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Published date: 10 March 2004
Keywords:
asymmetric transfer hydrogenation, ligands, ketones, catalysis
Identifiers
Local EPrints ID: 54183
URI: http://eprints.soton.ac.uk/id/eprint/54183
ISSN: 0020-1693
PURE UUID: a29524b9-527d-4ad6-90a8-f12ff308fa23
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Date deposited: 31 Jul 2008
Last modified: 16 Mar 2024 03:51
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Contributors
Author:
Matthew D. Jones
Author:
Filipe A. Almeida Paz
Author:
John E. Davies
Author:
Jacek Klinowski
Author:
Brian F.G. Johnson
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