Strength of C-H bonds in amines and amides and their reactivity toward peroxyl radicals

The experimental data on reactions of peroxyl radicals with aliphatic amine s were analyzed in terms of the parabolic model of bimolecular reactions. T he parameters characterizing this class of reactions were determined. The r eactivities of amine C-H bonds in reactions with RO2. were found to be clos e to those of the C-H bonds of alkylaromatic hydrocarbons. The obtained par ameters were used to calculate the dissociation energies of C-H bonds in 1 1 amines and four amides from the kinetic data. Quantum-chemical calculatio ns of the dissociation energies of C-H bonds in several polyamines, amides, and imides were performed. The results were used to estimate the reactivit ies of various C-H bonds of polyamines and amides in reactions with peroxyl radicals.