Transfer hydrogenation of acetophenone promoted by (arene)ruthenium(II) reduced schiff base complexes: An X-ray structure of [(ν6-p-cymene)RuCl (OC6H4-2-CH2NHC6H4-p-Me)]

  • Rath R
  • Nethaji M
  • Chakravarty A
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Abstract

Arene ruthenium(II) reduced Schiff base complexes of formulation [ν6-p-cymene)RuCl(Ln)] (1-5, n = 1-5) were prepared by reacting [(ν6-p-cymene)RuCl2]2with HLnin the presence of sodium carbonate in CH2Cl2. The complexes contain an ν6-p-cymene group, a chloride and a bidentate chelating N, O-donor ligand. The molecular structure of [(ν6-p-cymene)RuCl(OC6H4- 2-CH2NHC6H4-p-Me)] (1) has been determined by X-ray crystallography. The complexes are found to be catalytically active for transfer hydrogenation of acetophenone to (±)1-phenylethanol in the presence of KOH and isopropanol showing percent conversion of 98 with the catalysts having a bulky substituent adjacent to the O- and N-donor sites of the auxiliary ligand. © 2001 Published by Elsevier Science Ltd.

Author-supplied keywords

  • Arene ruthenium
  • Catalysis
  • Crystal structure
  • Reduced Schiff base
  • Transfer hydrogenation

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Authors

  • Rakesh K. Rath

  • Munirathinam Nethaji

  • Akhil R. Chakravarty

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