In this report, we demonstrate that a ball-milling technique facilitates fast and
efficient silver-catalyzed ring-opening fluorination of cyclobutanols. This is the
first report of a catalytic C–C bond-cleavage/functionalization reaction under solid-state
mechanochemical conditions. The developed protocol affords a high yield of γ-fluorinated
ketones within much shorter reaction times, and requires less silver catalyst and
Selectfluor compared with the previous solution-based conditions. Notably, the process
can be carried out in air. Because of the reduced use of chemicals and the simple
time-saving experimental procedures, this technique is an efficient and environmentally
friendly way to access γ-fluorinated ketones.
Key words
C–C bond cleavage - fluorination - mechanochemistry - ball-milling - solid-state chemistry
- silver catalysis