Cover Feature: Ring Opening Reactions of β‐Propiolactam in Superacidic Media (Chem. Eur. J. 6/2022)

Abstract

These cations were prepared in superacidic media starting from β‐propiolactam under the reaction conditions described on their labels. In the lower part of the picture is a Petri dish containing a mold culture representing penicillinium, which carries the β‐propiolactam motif as an important component. The magnifying glass highlights the ring structure, and the scissors show where cleavage occurs in superacids. More information can be found in the Research Article by A. J. Kornath et al. (DOI: 10.1002/chem.202104086).