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Synfacts 2011(2): 0172-0172
DOI: 10.1055/s-0030-1259275
DOI: 10.1055/s-0030-1259275
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag
Stuttgart ˙ New York
Enantioselective Synthesis of Planar Chiral Arene Chromium Complexes
M. Murai, J. Uenishi, M. Uemura*
Kyoto Pharmaceutical University, Japan
Further Information
Publication History
Publication Date:
19 January 2011 (online)
Significance
The known methods to synthesize planar chiral tricarbonyl(arene)chromium complexes leave some room for improvement with respect to yields and stereoselectivity. In this paper, the authors report a highly enantioselective (up to 99% ee) approach towards this compounds via gold(I)-catalyzed intramolecular hydroalkoxylation of aryl alkynes bound to the Cr(CO)3 moiety. The tricarbonylchromium moiety was shown to increase the enantioselectivity compared to the uncomplexed arene.