Cover Feature: the Quest for the Right Trade‐Off for an Efficient Photoclick Monitoring Reaction (chemphotochem 3/2022)

The Cover Feature highlights the photoreactivity of 2,5-diaryl tetrazoles, which is tuned by substituents on both the N-2-phenyl and C-5-phenyl rings: Electron-donating groups promote cycloaddition towards alkenes, whereas the presence of electron-withdrawing moieties increases fluorescence emission of the photogenerated pyrazolines. The new compound T7 can efficiently generate a fluorescent product with a high fluorescence quantum yield in aqueous solution. More information can be found in the Article by Filippo Doria, Mauro Freccero and co-workers.