Cephalosporin C-3-phosphoranes have been converted into the corresponding 3-alkenylcephems and novel tricyclic derivatives on treatment with different bifunctional carbonyl compounds. The effect of substituents on the product ratio has been examined. The stereoselectivity of the ringclosure is explained on the basis of theoretical considerations.
J. Pitlik, T. E. Gunda, G. Batta and J. Jekö, J. Chem. Soc., Perkin Trans. 1, 1994, 3043 DOI: 10.1039/P19940003043
To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.
If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.
If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.
Read more about how to correctly acknowledge RSC content.
Please wait while we load your content...