Potentiostatische Makroelektrolyse einer Reihe von Aryl-polyenketonen und spektroskopischer Nachweis der Produkte

Using data from preparative potentiostatic macroelectrolysis, IR spectroscopy of the isolated products and polarographic data, conclusions are drawn concerning the mechanism of electrode reduction of a series of ,-diphenyl polyene ketones.Electrolysis was carried out in 60% bufferedDMF at three typical pH values causing changes in the mechanism of the electrode process.The data obtained indicate the following scheme for the mechanism of the electrode process: (a) in the strongly acidic region: H⁺, e, H⁺, e; (b) in the intermediate region: H⁺, e, e, H⁺; (c) in the strongly alkaline region: e, H⁺, H⁺, e, H⁺, e.

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