Mechanism of Sulfonation of 4-Hydroxyazobenzene
Autor: | H. Cerfontain, W. M. J. Strachan, E. Buncel |
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Rok vydání: | 1971 |
Předmět: | |
Zdroj: | Canadian Journal of Chemistry. 49:152-156 |
ISSN: | 1480-3291 0008-4042 |
DOI: | 10.1139/v71-024 |
Popis: | The mechanism of sulfonation of 4-hydroxyazobenzene and of 4-hydroxyazobenzene-4′-sulfonic acid in concentrated sulfuric acid media is examined through rate correlations and comparison is drawn with sulfonation of alkyl- and halogenobenzenes by means of [Formula: see text] plots. It is concluded that several mechanisms are operative in the hydroxyazobenzene system and that the curvature of the plot is the result of a change in rate-determining step from σ-complex formation to proton abstraction. |
Databáze: | OpenAIRE |
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