trans- and cis-Ru(II) aminophosphine complexes: Syntheses, X-ray structures and catalytic activity in transfer hydrogenation of acetophenone derivatives

Date

2011-02-28

Author

AYDEMİR, MURAT
BAYSAL, AKIN
Özkar, Saim
Yildirim, Leyla Tatar

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The ability of transition metal catalysts to add or remove hydrogen from organic substrates by transfer hydrogenation process is a valuable synthetic tool. For this aim, a novel Ru(II) complex with the P-N ligand [(Ph(2)P)(2)NCH(2)-C(4)H(3)S] derived from thiophene-2-methylamine was synthesized starting with the complex [Ru(eta(6)-p-cymene)(mu-Cl)Cl](2) and isolated in two isomeric forms: trans- and cis[Ru((PPh(2))(2)NCH(2)-C(4)H(3)S)(2)Cl(2)], 2 and 3, respectively. The structures of both isomers were also determined by single crystal X-ray diffraction. The cis-isomer 3 can be isolated from the solution of major trans-isomer 2 as yellow crystals. However, upon dissolution 3 is rapidly converted to the trans-isomer 2. The new ruthenium(II) complex provides high catalytic activity in the transfer hydrogenation of acetophenone derivatives to 1-phenylethanol derivatives in the presence of 2-propanol as the hydrogen source. This transfer hydrogenation is characterized by low reversibility under the experimental conditions.

Subject Keywords

Physical and Theoretical Chemistry, Inorganic Chemistry, Materials Chemistry

URI

https://hdl.handle.net/11511/62934

Journal

INORGANICA CHIMICA ACTA

DOI

https://doi.org/10.1016/j.ica.2010.12.028

Collections

Department of Chemistry, Article

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Citation Formats

M. AYDEMİR, A. BAYSAL, S. Özkar, and L. T. Yildirim, “trans- and cis-Ru(II) aminophosphine complexes: Syntheses, X-ray structures and catalytic activity in transfer hydrogenation of acetophenone derivatives,” INORGANICA CHIMICA ACTA, pp. 166–172, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62934.