Asymmetric Transfer Hydrogenation in Water with a Supported Noyori−Ikariya Catalyst

Xiaoguang Li, Xiaofeng Wu, Weiping Chen, Fred E. Hancock, Frank King, and Jianliang Xiao*
Department of Chemistry, Liverpool Center for Materials and Catalysis, University of Liverpool, Liverpool L69 7ZD, UK, and Johnson Matthey, Billingham, Cleveland TS23 1LB, UK
Org. Lett., 2004, 6 (19), pp 3321–3324
DOI: 10.1021/ol0487175
Publication Date (Web): August 20, 2004
Copyright © 2004 American Chemical Society

Abstract

Abstract Image

The poly(ethylene glycol)-supported ruthenium precatalyst shown above is highly effective for asymmetric transfer hydrogenation of unfunctionalized aromatic ketones by HCOONa in neat water, affording fast rates, good to excellent enantioselectivities, and outstanding reusability.

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      The new ligand 6,6′-dihydroxy-2,2′-bipyridyl (dhbp) was synthesized via its tautomer, and this provides an efficient route to novel metal complexes of dhbp. In ruthenium complexes of dhbp, these OH groups enhance water solubility and may play a role in ...

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      Enzymes are a source of inspiration for chemists attempting to create versatile synthetic catalysts. In order to arrive at a polymeric chain carrying catalytic units separated spatially, it is a prerequisite to fold these polymers in water into well-...

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  • Cover Image

    New Dipyridylamine Ruthenium Complexes for Transfer Hydrogenation of Aryl Ketones in Water

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    • New Dipyridylamine Ruthenium Complexes for Transfer Hydrogenation of Aryl Ketones in Water

      Charles Romain, Sylvain Gaillard, Mohammed K. Elmkaddem, Loïc Toupet, Cédric Fischmeister, Christophe M. Thomas and Jean-Luc Renaud
      Organometallics2010 29 (8), 1992-1995

      A new family of cationic organometallic chloro compounds of the type [(arene)Ru(N,N)(Cl)]+ containing N,N-chelating dipyridylamine ligands has been synthesized and isolated as the chloride salts, which are water soluble and stable to hydrolysis. The ...

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History

  • Published In Issue September 16, 2004
  • Received July 6, 2004

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