Allene carboxanilides (5) with an additional geminal secondary carbamoyl group undergo intramolecular Diels–Alder reactions at rather low temperature (80 °C) to furnish the tricyclic lactams (6), which, in turn, isomerize to give the tricyclic lactams (8) at about 130 °C.
G. Himbert, K. Diehl and G. Mass, J. Chem. Soc., Chem. Commun., 1984, 900 DOI: 10.1039/C39840000900
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...