Palladium-Catalyzed Chloride Substitution of η<sup>5</sup>-(Chlorocyclohexadienyl)Mn(CO)<sub>3</sub> Complexes: An Access to Novel η<sup>6</sup>-(Arene)Mn(CO)<sub>3</sub><sup>+</sup> Cations
Functionalization of η5-(chlorocyclohexadienyl)Mn(CO)3 complexes was achieved by palladium-catalyzed reactions using Pd2(dba)3 in the presence of AsPh3. Arylation, carbonylation, and substitution by alkyne-, alkene-, and heteroatom-based nucleophiles were performed, giving rise to functionalized η5 complexes whose structures have been investigated by NMR and X-ray studies. These η5 complexes are valuable