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Synfacts 2007(12): 1272-1272  
DOI: 10.1055/s-2007-991374
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag Stuttgart · New York

Highly Active Rhodium-Diene Complexes for [4+2] Cycloadditions

Contributor(s): Mark Lautens, Michael Langer
R. Shintani, Y. Sannohe, T. Tsuji, T. Hayashi*
Kyoto University, Japan
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Publication History

Publication Date:
22 November 2007 (online)

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Significance

The Rh-catalyzed [4+2] cycloaddition yields enantiomerically enriched annulated ring systems which can be valuable intermediates in synthesis. The authors found that rhodium-diene complexes give highly active catalysts and compare favorably to the previously reported diphosphine-rhodium complexes (Related work: K. Mikami and co-workers J. Am. Chem. Soc. 2006, 128, 12648).