Fig. 1: Copper-mediated radiofluorination reactions.
From: Copper-mediated radiochemistry: historical impact, current trends, and future possibilities

A–D Early examples of the copper-mediated radiofluorination reactions with various aryl precursors. E The proposed general mechanism of the copper-mediated radiofluorination of organoboron and tin reagents is analogous to the Chan-Lam coupling reaction.