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.

Note | Special issue | Vol 79, No. 1, 2009, pp.1087-1091
Published online, 21st November, 2008
DOI: 10.3987/COM-08-S(D)56
Spirocyclization of Six-Membered Cyclic N-Acyliminium Ions with a Conjugated Diene

Hideki Abe, Yoshinori Muramatsu, Kazuhiro Watanabe, Sakae Aoyagi,* Chihiro Kibayashi, and Tadashi Katoh*

*School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan


Intramolecular spirocyclization of six-membered cyclic N-acyliminium ions with a tethered conjugated diene has been studied. The reaction of an N-acyliminium ion bearing an endocyclic amide carbonyl group led to spirocyclization to give a 1-azaspiro[5.5]undecane compound.