Stereochemical and electronic interaction studies of some meta- and para-substituted alpha-methylsulfinyl-alpha-diethoxyphosphoryl acetophenones

The νCO IR and [1]H NMR data of some meta- and para-substitutedα-methylsulfinyl-α-diethoxyphosphorylacetophenones, along with theoretical calculations, have shown the existence of two pairsof diasteromers (racemic mixture) both in solution of solvents of increasing polarity and in the gas phase