Résumé
Oxygen‐17 NMR spectroscopy is a powerful tool for studying the structure and reactivity of a wide variety of molecular systems, but it suffers from an extremely low sensitivity. In their Communication on page 6803 ff., D. Laurencin, T.‐X. Métro et al. show that mechanochemistry is uniquely suited for labeling both organic molecules and inorganic compounds of synthetic interest with oxygen‐17 in a fast, cost‐efficient, and user‐friendly way.