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Equilibrium constants and protonation site for N-methylbenzenesulfonamides

The protonation equilibria of four substituted N-methylbenzenesulfonamides, X-MBS: X = 4-MeO (3a), 4-Me (3b), 4-Cl (3c) and 4-NO(2) (3d), in aqueous sulfuric acid were studied at 25 °C by UV–vis spectroscopy. As expected, the values for the acidity constants are highly dependent on the electron-dono...

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Main Authors: Moreira, José A, Rosa da Costa, Ana M, García-Río, Luis, Pessêgo, Márcia
格式: Artigo
語言:Inglês
出版: Beilstein-Institut 2011
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在線閱讀:https://ncbi.nlm.nih.gov/pmc/articles/PMC3252878/
https://ncbi.nlm.nih.gov/pubmed/22238552
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.3762/bjoc.7.203
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