Mumm rearrangement

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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 Mumm rearrangement

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


  1. ^ Mumm, O. Ber. Dstch. Chem. Ges. 1910, 43, 886-893
  2. ^ Preparation of acyclic isoimides and their rearrangement rates to imides J. S. Paul Schwarz J. Org. Chem.; 1972; 37(18) pp 2906 - 2908; doi:10.1021/jo00983a028