Electrochemical behavior of aromatic amines protected by the nitrobenzenesulfonyl group
作者： Maria V. Boldrin Zanoni , Nelson Ramos Stradiotto
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摘要: The electrochemical reduction of aniline protected by the 4-, 3-, or 2-nitrobenzenesulfonyl group in N,N-dimethylformamide (DMF) at a vitreous carbon electrode is reported. compounds are reduced three cathodic steps. first step about −0.85 V vs. SCE occurs with formation an unstable anion radical, which decomposes via NH bond cleavage. Reduction this sulfonamide −1.16 for para and meta isomers −1.48 ortho isomer. third higher potentials. BH cleavage always preponderant process. mechanisms discussed.
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