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.

Paper | Regular issue | Vol 43, No. 3, 1996, pp.675-683
Published online, 1st January, 1970
DOI: 10.3987/COM-95-7358
The Diastereoselective Synthesis of Oxacephams from 1,3-2H-Oxazines

Mostafa Hatam, Sabine Köpper, Jürgen Martens*

*Fachbereich Chemie, Universität Oldenburg, P. O. Box 2503, D-26111 Oldenburg, Germany

Abstract

Various oxacephams are obtained from symmetrically and unsymmetrically 2,2,5,5-substituted 1,3-2H-oxazines by the Staudinger reaction. The annulation reaction proceeds diastereoselectively with both synthons, as unequivocally determined by nmr spectroscopical analysis.