The reaction of substituted benzenesulfinic acids with N-phenymaleimide has been carried out, and the products obtained have been identified as sulfones from analyses of their IR, UV, and NMR spectra. From the kinetic investigation, a linear Hammett relationship between the σ-value and logK 2/K 0 has been confirmed. It is concluded that the nucleophilic attack of the sulfinic acid sulfur atom on the carbon of the C= C bond of N-phenylmaleimide is the ...
