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Synfacts 2009(2): 0199-0199  
DOI: 10.1055/s-0028-1087657
Metal-Mediated Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Re-Catalyzed Cycloaddition of β-Keto Esters to Aliphatic Allenes

Contributor(s): Paul Knochel, Tobias Thaler
S. S. Yuda, Y. Kuninobu*, K. Takai*
Okayama University, Japan
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Publikationsverlauf

Publikationsdatum:
22. Januar 2009 (online)

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Significance

A novel diastereoselective annulation reaction between β-keto esters and aliphatic allenes is presented. The reaction leads to the formation of stereodefined cyclopentenes, in which three stereogenic centers are controlled, including an all-carbon quaternary center.