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Enantioselective synthesis of cyclopentane derivatives using zirconium-catalyzed asymmetric cyclization

โœ Scribed by Yousuke Yamaura; Miwako Mori

Book ID
104261257
Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
199 KB
Volume
40
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Cyclization of diene 2a using (S)-(EBTHI)ZrB1NOL (1) (10 mol %) and BuNIgCI in THF upon heating gave cyclopentane derivative tr~s-3a with 99% ee and cis-3a with 86% ee in 69% and 31% yields, respectively. In a similar manner, diene 10 gave cyclopentane derivative cis-ll with 94% ee in 81% yield as a sole product.

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