Abstract
Ultraviolet absorption spectra of phenyl methyl sulfone derivatives were compared with those of benzenesulfonamide derivatives. Introduction of an electron-donating group in the para-position of phenyl methyl sulfone causes a larger bathochromic shift of the first primary band than that in the para-position of benzenesulfonamide, whereas the introduction of electron-attracting group gives hypsochromic shift from the corresponding benzenesulfonamide. Effect of substituents attached to the methyl group of methyl-sulfones on the spectra was also discussed.
