Polarographic Reduction of Nitrobenzene and its Derivativesin Alkaline Medium
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چکیده
منابع مشابه
POLAROGRAPHIC AND POTENTIOSTATIC REDUCTION OF CARBODIIMIDES: A MECHANISTIC STUDY
The polarographic reduction of aromatic carbodiimides in anhydrous aprotic solvents goes through a carbene intermediate by a diffusion controlled process in two one-electron steps. The first step is the rate-determining step and converts the carbodiirnide to a radical anion (6) that reduces further by a fast one-electron step to a carbene dianion intermediate (7). This abstracts an oxygen, ...
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The polarographic wave observed for acetonitrile solutions of benzoic acid is due to reduction of the acid proton: the apparent diffusion current constant for the wave increases with concentration of benzoic acid as expected for the reduction of the acidic proton of a slightly dissociated acid. No wave was observed for ethyl benzoate. The situation in respect to the electrochemical reduction of...
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15 صفحه اولPolarographic Study of the Streaming Maximum of Nitrobenzene in Mcllvaine Buffer
The polarographic maximum of nitrobenzene (first reduction step) is studied at pH 2.2, 5.3 and 7.8. The nature of the maximum is pH dependent and it changes from positive first kind (at pH = 2.2) to negative maximum of the first kind (at pH 5.3, 7.8). At higher flow-rates, compound maxima occur and clear reversal potentials are located where maximum of first kind is transformed into the second ...
متن کاملpolarographic and potentiostatic reduction of carbodiimides: a mechanistic study
the polarographic reduction of aromatic carbodiimides in anhydrous aprotic solvents goes through a carbene intermediate by a diffusion controlled process in two one-electron steps. the first step is the rate-determining step and converts the carbodiirnide to a radical anion (6) that reduces further by a fast one-electron step to a carbene dianion intermediate (7). this abstracts an oxygen, alon...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1957
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.60.289