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Communication | Special issue | Vol 52, No. 2, 2000, pp.595-598
Published online, 1st January, 1970
DOI: 10.3987/COM-99-S111
Asymmetric Cyclization of Diene Having an Alkoxy Moiety in a Tether

Yousuke Yamaura and Miwako Mori*

*Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan


Asymmetric cyclization of diene having a hydroxymethyl or hydroxyethyl group in a tether gave a trans-product with a high ee derived from trans-zirconacycle, while the ee of a cis-product derived from cis-zirconacycle was low. Coordination of the hydroxy group to zirconium as an intermediary zirconacycle would affect the ee of the cyclized product.