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

Communication | Regular issue | Vol 22, No. 12, 1984, pp.2713-2717
Published online, 1st January, 1970
DOI: 10.3987/R-1984-12-2713
■ High Pressure Approach to the Synthesis of 7-Phosphanorbornadienes Form λ5-Phosphole Oxides and Dialkyl Acetylenedicarboxylates

Kiyoshi Matsumoto,* Shiro Hashimoto, Shinichi Otani, and Takane Uchida

*Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan

Abstract

Reactions of 1,2,3,4,5-pentaphenylphosphole oxide (4a) with dimethyl and di-t-butyl acetylenedicarboxylates (5a, b) under high pressure afford the tetraphenylphthalates (7a, b) along with the 7-phosphanorbornadiene derivatives (6a, b). The latter adducts have proven too unstable to be submitted to deoxygenation under conventional conditions.