Abstract
Some unsaturated alcohols are reduced electrochemically on mercury at very negative potential values. For many of them, it has been shown that the carbon-oxygen bond is cleaved with formation of unsaturated hydrocarbons, in a two electron reaction. However, in some cases, there exists for the anion radical another possibility of reaction: protonation to form a saturated alcohol. When the protonation reaction is slow compared to the cleavage reaction, a direct method of electroreduction of ketones to hydrocarbons, through the intermediate alcohol, can be proposed.
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