Kinetic Investigations on the Alkylation Capacity of Dithiophosphoric Acid Triesters in Binary Solvent Mixtures Methanol/Water The influence of solvent polarity on the alkylation capacity of dithiophosphoric acid triesters towards the nucleophiles trimethylamine and monomethylamine is investigated. Different binary mixtures of methanol and water and also the pure compounds are used as solvents. The observed effects are described quantitatively on the basis of Linear Free Energy Relationships by means of empirical parameters of the solvent polarity. Good results are obtained by correlation of the rate constants with the concentration of the polar component cp by Langhals.
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Füllbier et al. (1988) studied this question.
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