Dehalogenation of Aryl Halides by 9‐Fluorenol Catalysis

We have disclosed the 9-fluorenol-catalyzed reductive dehalogenation of aryl halides. 9-Fluorenol, a readily available and structurally simple organic compound, serves as a catalytic single-electron reductant under light- and electricity-free conditions. Another key feature of this transformation is isopropyl alcohol, which simultaneously functions as the solvent, terminal reductant, and hydrogen source. Consequently, the reaction system requires only four components: substrate, catalyst, base, and solvent. This operationally simple method enabled efficient hydrodehalogenation of a wide range of aryl iodides as well as electron-deficient aryl bromides and chlorides.