Abstract
N-Arenesulfonyl-e-aminocaproic acids behave in aqueous dioxane as weak dibasic acids; their ionization constants were determined. The correlation of pKa with Hammett σ constants was revealed, and the reaction parameters ρ were evaluated. The reaction centers (carboxy and amide groups) are weakly sensitive to the effect of substituents in the benzene rings. Formation of an intramolecular hydrogen bond in the molecules of these acids was proved.
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