Issue 6, 1993

The Brønsted acid-catalysed hydrolysis of acyl fluorides in aqueous media

Abstract

In dioxane-water mixtures rich in dioxane, the hydrolysis of benzoyl fluoride is catalysed by hydrogen ions by two mechanisms, one dominant at low, and the other at high, values of [H3O +]. In purely aqueous solutions, and in water-rich dioxane–water mixtures, the only catalysis observed is that at high acid concentrations. The effect of temperature, and of p-substituents suggests this later catalysis involves an A1 mechanism. We tentatively assign an ABAC3 mechanism to the catalysis found at low acid concentrations in dioxane-rich media. The hydrolysis of phenylacetyl fluoride in dioxane-water exhibits a behaviour pattern similar to that found for benzoyl fluoride.

Article information

Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1993, 1087-1090

The Brønsted acid-catalysed hydrolysis of acyl fluorides in aqueous media

R. E. Motie, D. P. N. Satchell and W. N. Wassef, J. Chem. Soc., Perkin Trans. 2, 1993, 1087 DOI: 10.1039/P29930001087

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