The Sulfone Stretching Frequencies of Some Phenylsulfonyl Derivatives.

抄録

Infrared spectra of 48 kinds of phenylsulfonyl derivatives were measured and the substituent influence on the SO₂ stretching frequency was discussed in terms of electronic effects. In each series of homolog of phenyl 2-chloroethyl sulfone, 2-mesyloxyethyl sulfone, vinyl sulfone, and ethyl sulfone, the linear correlation of v_as with Hammett's σ of p-substituent was recognized. It was also observed that β-substituents such as chloro- and mesyloxy- exert a certain degree of effect on the frequency shift, respectively. The SO₂ stretching vibration of phenyl vinyl sulfone derivatives appeared in somewhat upward wave number compared with that of phenyl ethyl sulfone series.