Alkylation of ferrocene with tetrachlorocyclopropene in the presence of AlCl 3 followed by aqueous workup affords 2,3-diferrocenylcyclopropenone in high yield. We have studied some of this ketone's chemical transformations and electrochemical properties. 2,3-Diferrocenylcyclopropenone withstands thermolysis; it is stable in an acidic medium; the action of tetrafluoroboric acid−diethyl ether results in the formation of diferrocenyl(hydroxy)cyclopropenylium tetrafluoroborate; nucleophiles, including methyllithium and lithium aluminum
The electrochemistry of copper(II) with three 14-membered saturated tetra-aza macrocyclic ligands (L) is reported. Both anodic and cathodic electrode processes involve complicated mechanisms; nevertheless cyclic voltammetry at high potential scan rates allowed evaluation of the E½ values for the couples [CuL]3+–[CuL]2+ and [CuL]2+–[CuL]+. Reduction and oxidation mechanisms have been studied and the half-life of the species [CuL]3+ anodically electrogenerated has been evaluated. The thermodynamic data are discussed
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