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Synfacts 2005(0): 0059-0059  
DOI: 10.1055/s-2005-869947
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag Stuttgart · New York

Chiral Ferrocenyl Phosphine-Triazines as Ligands for Asymmetric Allylic Substitution

Contributor(s): Mark Lautens, Andrew Martins
X.-P. Hu, H.-L. Chen, Z. Zheng*
Dalian Institute of Chemical Physics, P. R. China
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Publication History

Publication Date:
20 July 2005 (online)

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Significance

Asymmetric allylic alkylations have been exhaustively studied, and excellent enantio­selectivities have been demonstrated in numerous cases. Ferrocenyl-based P,N-ligands have recently received attention, with the incorporation of N-heterocycles believed to influence selectivity. The pendant triazine was found to increase enantio­selectivity, with better selectivity than cases with less N content. Allylic substitution with malonates (α-substituted and unsubstituted) and benzyl­amine were demonstrated, displaying excellent yield and selectivity with malonates, and good yield and selectivity with amination.