KINETICS OF THE REACTION BETWEEN 2-HALOPICOLINE N-OXIDES AND ETHOXY ION IN ETHANOL

The rates and activation parameters for the reactions of 2-halopicolin e N-oxides with sodium ethoxide in ethanol have been determined. The r eaction rates decrease in the sequence Br > Cl > I in reverse order to that of the entropies, enthalpies, energies and free enthalpies of ac tivation and frequency coefficients log Pz. The correlation nucleophil ic reactivity (EA) with difference of HOMO-LUMO, and the value of exce ssive charge on C-2 and on oxygen atom of N-oxide group of title compo unds was given.