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.

Report | Regular issue | Vol 22, No. 12, 1984, pp.2751-2755
Published online, 1st January, 1970
DOI: 10.3987/R-1984-12-2751
Addition of Chlorosulphonyl Isocyanate to Tetrasubstituted Cyclopentadienes: A Facile Route for the Synthesis of Azepines

Krishna Narasimhan,* Perumal Raja Kumar, and Thamari Selvi

*Department of Organic Chemistry, Guindy Campus, University of Madras, Chennai-600 025, India

Abstract

The β-lactams 2, 2a obtained by the cycloaddition of chlorosulphonyl isocyanate to the dienes 1, 1a give the azepinones 5, 5a through the sulphonate estere 4, 4a. The sulphonate ester 6 obtained from 4, when treated with sodium hydride gives the dihydroazepine 8.