Front Cover: In Situ Generated DBU⋅HF Acts as a Fluorinating Agent in a Hexafluoroisobutylation Tandem Reaction: An Effective Route to 5,5,5,5’,5’,5’‐Hexafluoroleucine (Eur. J. Org. Chem. 10/2023)

The Front Cover illustrates the ability of DBU – yellow tightrope walker to preserve fluoride nucleophilicity promoting fluorination a pentafluoroisobutenyl group five-flower bouquet carried by young lady in cascade reaction. In contrast, alkali metals blue acrobats precipitate with ions precluding subsequent hydrofluorination. created Ludion. More information can be found Research Article G. Guichard, Compain et al.