Front Cover: O ‐ C Glycoside Rearrangement through Time‐Controlled Electrochemical Flow Strategy: Switching between Kinetics and Thermodynamics (Eur. J. Org. Chem. 19/2025)

The Front Cover illustrates a time‐controlled O–C glycoside rearrangement in a flow microreactor. The hourglass symbolizes the second‐scale time resolution achieved in the system, in which the top‐to‐bottom transition represents the conversion of kinetic O ‐glycoside to thermodynamic C ‐glycoside. This approach enables selective synthesis through precise reaction time control. More information can be found in the Research Article by A. Nagaki and co‐workers (DOI: 10.1002/ejoc.202500038 ).