Novel Route to β-Chloro Vinyl Sulfonesviathe Action of Phosphorus Pentachloride on Phenacyl Aryl Sulfones in Chloroform

Potassium Hydroxide-Mediated Novel Rearrangement of 2-Alkyl-sulfonyl-2- arylsulfonyl-1-phenylethanones to 1-Aryl-2-(arylsulfonylmethanesulfonyl)ethanones

“…On the other hand, unsymmetrically substituted 2-alkylsulfonyl-1-aryl-2-(arylsulfonyl)ethanones 7k − w (R 1 = aryl; R 2 = H, Me; R 3 = H, alkyl, Ph; R 4 = H) were prepared by reactions of arylsulfonylbenzoylmethane 9 with alkylsulfonyl chloride in the presence of sodium ethoxide in EtOH (Scheme ) …”