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Oxidative Dimerization of CH Acids Anodic oxidation of alkyl‐ (1) and acylmalonic acid esters (7) yields the dehydromiers 4 and 8, respectively. Preparative electrolyses are performed in acetonitrile in the presence of a base to generate the carbanion corresponding to the CH acid. The carbanions are oxidized to the radicals which dimerise on the electrode surface. The yields of the preparative electrolyses and the formation of the dehydrodimers 4 and 8 are discussed in terms of the CH acidity and enolization of starting materials.

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