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:

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Communication | Regular issue | Vol 19, No. 10, 1982, pp.1813-1818
Published online, 1st January, 1970
DOI: 10.3987/R-1982-10-1813
New Tricyclic Ketones Derived from Eudesmanolide

Seiichi Inayama, Hitoshi Hori, Nobuko Shimizu, Ashok Kumar Singh, Takeshi Kawamata, Tetsuichi Shibata, and Yoichi Iitaka

*Pharmaceutical Institute, School of Medicine, Keio University, Shinanomachi 35, Shinjuku, Tokyo 160-0016, Japan


The complete structures of new tricyclic keto olefins (4a,b) formed by cyclization-skeletal rearrangement of an eudesmanolide (1) with phosphoryl chloride were established by spectroscopic and X-ray crystallographic analyses of an unusual diol (6a), epoxy ketones (7a,b) and α,β-unsaturated ketones (8a,b).