The pKa values of a series of substituted trans-3-benzoylacrylic acids have been determined in 80%(w/w) 2-methoxyethanol–water. The effect of substitution in the phenyl group has been assessed by means of the Hammett equation. The transmission of polar effects in the systems under study is discussed.
K. Bowden and M. P. Henry, J. Chem. Soc., Perkin Trans. 2, 1972, 209 DOI: 10.1039/P29720000209
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