Mumm rearrangement explained

The Mumm rearrangement is an organic reaction and a rearrangement reaction.^{[1] [2]} It describes a 1,3(O-N) acyl transfer of an acyl imidate or isoimide group to an imide.

The reaction is of relevance as part of the Ugi reaction.

Notes and References

1. Mumm, O.. Umsetzung von Säureimidchloriden mit Salzen organischer Säuren und mit Cyankalium. 1910. Berichte der Deutschen Chemischen Gesellschaft. 1. 43. 886–893. 10.1002/cber.191004301151. de.
2. Schwarz, J. P.. 1972. Preparation of acyclic isoimides and their rearrangement rates to imides. The Journal of Organic Chemistry. 37. 18. 2906-2908. 10.1021/jo00983a028.