Stereochemical and electronic interactions studies of some meta- and para- substituted `alpha'-methylsulfinyl-`alpha'-diethoxyphosphoryl acetophenones - Olivato, Paulo Roberto; Reis, Adriana Karla Cardoso Amorim; Rodrigues, Alessandro; Zukerman-Schpector, Júlio; Tormena, Cláudio Francisco; Dal Colle, Maurizio (International Symposium on the Organic Chemistry of Sulfur, 2004)