Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Kinetic Study on Homolysis of Aryl Arylazo Sulfones
Minoru KojimaHiroshi MinatoMichio Kobayashi
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1972 Volume 45 Issue 7 Pages 2032-2035

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Abstract

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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