oxidant-free reaction of cyclopropanols, DABCO ⋅ (SO2)2 and diaryliodoniumsalts in aqueous phase is described. This reaction proceeds under mild reaction conditions, affording bioactive aryl substituted γ-keto sulfones in 36%-90% yields with good functional group tolerance. This reaction proceeds through a γ-keto sulfinate intermediate, which undergoes a nucleophilic reaction with diaryliodoniumsalts, giving