Esterification reaction rates of aliphatic monocarboxylic acids with primary alcohols in 1,4-dioxane as inert solvent were investigated. Acids were esterified with 1-propanol and alcohols with acetic acid as model reactants at a constant temperature of 60 • C, at a fixed ionic strength and pH in a batch reactor with a constant volume. For evaluation of reaction rates, an exact kinetic equation for the equilibrium reaction was applied. Under these conditions and for low reactants, concentrations reaction rate depends only on the structure of reactants and, therefore, can be predicted by a correlation equation with two Taft coefficients (inductive and steric effects). From these equations, it is possible to estimate the esterification reaction rate constant for other acid-alcohol pairs. This methodology may also be suitable for other kinetic systems measured under comparable experimental conditions. C

It was found that hydrophilic organic solvent, added to aqueous PdCl2 solution to increase the solubility of alkene, affects both parallel processes taking place during the reaction of 1-alkenes with PdCl2, i.e. the isomerisation of 1-alkene to internal n-alkenes and the oxidation of alkenes to carbonyl compounds; the solvent can facilitate either both processes (alcohols) or only one of the processes (acetic acid - isomerisation, N,N-dimethylformamide - oxidation), eventually it can retard both or one of processes (acetonitrile - oxidation, dioxane - isomerisation, dimethyl sulphoxide - isomerisation and oxidation). On using 2-methoxyethanol as the solvent, the oxidation of 1-octene can be correlated by the same rate equation as the oxidation of styrene or ethylene.

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