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Detailed studies concerning the reactivity of the dicationic organometallic carbene precursor 1 and its related free cationic carbene 2 have been carried out. While dication 1 is stable in O-donor solvents like acetone, nitromethane and even water, it is degraded by softer nucleophiles like acetonitrile or electron rich aromatics. In contrast to the hydrolytic stability of dication 1, the cationic...
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