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 47, No. 1, 1998, pp.167-170
Published online, 1st January, 1970
DOI: 10.3987/COM-97-S(N)72
A Novel Approach to Functionalized Polycyclic Systems; Synthesis of Tetracyclic Compounds by Sequential Rearrangement-Cycloaddition Reactions of 7-Oxa-2,3-dimethylenenorbornene Derivative

Katsuhiro Konno, Hirokazu Tanigawa, and Hiroaki Takayama*

*Faculty of Pharmaceutical Sciences, Teikyo University, 1091-1 Suarashi, Sagamiko-machi, Tsukui-gun, Kanagawa 199-0195, Japan

Abstract

The tricyclic diene (6), readily accessible from a novel building block, 4H,6H-thieno[3,4-c]furan 5,5-dioxide (1), reacted with a variety of dienophiles to give the tetracyclic perhydroazulene derivatives (7) in good to high yield.