Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact: purchase@heterocycles.com

Price: ¥ 4,320 (Yen only)
Period: This Article can be accessed for 7 days.

Communication | Special issue | Vol 77, No. 1, 2009, pp.173-177
Published online, 5th June, 2008
DOI: 10.3987/COM-08-S(F)13
Concise Assembly of the BCD Ring Part of Ginkgolide C via a Novel Cyclization Reaction

Ayaka Hibi, Kazutaka Takeda, and Masahiro Toyota*

*Department of Chemistry, Graduate School of Science, University of Osaka Prefecture, Sakai, Osaka 593-8531, Japan

Abstract

Efforts to synthesize a 6-oxatricyclo[6.3.0.01.5]undecane ring system are described. A novel Pd(II)-promoted oxidative cyclization of the lactone ester constructs the tricyclic core of ginkgolide C.