ISSN:
1573-9171
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Conclusions 1. The rate constant K(7) of the interaction of cumyl peroxide radicals with 2-arylindan-1,3-diones (ΦH), the activation energies of these reactions (Eact), and the stoichiometric coefficients of inhibition (f) were determined. 2. The values of k7 and f are determined to a substantial degree by the nature of the substituents and their position in the 2-phenyl ring. 3. For the p-substituted 2-phenylidan-1,3-diones a correlation equation logk7/k7.st=0.28σ + 1.01 ER was established. The value of the rate constants of stripping of a H atom from the CH bonds of φH by peroxide radicals is influenced by the polarity of the substituent (σ) and the resonance factor (ER), considering the contribution of the substituents to the delocalization of the unpaired electron in the radical Ф formed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00922940
Permalink