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Synfacts 2009(7): 0771-0771  
DOI: 10.1055/s-0029-1217287
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag Stuttgart ˙ New York

4,4′-Di-tert-butyl TunePhos Ligand in Asymmetric Hydrogenation

Contributor(s): Hisashi Yamamoto, Joshua P. Abell
C.-J. Wang*, C.-B. Wang, D. Chen, G. Yang, Z. Wu, X. Zhang*
Wuhan University and Central China Normal University, Wuhan, P. R. of China; Rutgers, The State University of New Jersey, Piscataway, USA
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Publication History

Publication Date:
22 June 2009 (online)

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Significance

Many transition metal catalysts for the asymmetric reduction of various olefins have been reported. The authors cited a need to produce simple ligands for this important class of ­reactions. In this report the authors designed a simple synthesis of a TunePhos derivative and applied it to the asymmetric hydrogenation of β-keto esters.