Structure-reactivity correlations in the reactions of phenacyl bromide and ethyl bromoacetat with ortho-substituted cinnamate ions

Abstract

707-708The second order rate constants in the title reactions in 90% acetone-10% water (v/v) mixture at three different temperatures indicate that electron-releasing substituents accelerate the rate while electron-withdrawing substituents retard the rate. A good Hammett correlation with σp constants is obtained for ortho-substituted cinnamate ions. The rate data have also been analysed using the method of Charton