Synthesis of α,β-Ethylenic Sulfones

A series of new α,β-ethylenic sulfones were prepared by the condensation of p-chlorophenylsulfonylacetic acid with various aryl aldehydes. The UV and IR spectra of all these compounds were recorded. Their IR spectra exhibited medium to strong bands in the region 1000–975 cm−1, characteristic of trans ethylenic compounds.