1972 Volume 45 Issue 7 Pages 2032-2035
Aryl arylazo sulfones were prepared, and the rates of homolyses in chlorobenzene were determined in the presence of a base for suppression of acid catalysis at 80–118°C. An isokinetic relationship was found to hold between ΔH\ eweq and ΔS\ eweq (β=101.0°C). The substituents on the benzenesulfonyl group influenced the rates very little, whereas the substituents on the phenylazo group decreased the rates (especially the electron-releasing substituents).
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