Bulkyl naphthyl substituted allyl ketones underwent the reaction to produce the corresponding δ-sultones in high yield (3l and 3m). Heteroaryl substituted allyl ketones coupled with 2a to furnish the desired ethenylated δ-sultones in good yields (3a-3o). β-Alkyl substituted vinyl ketones were also proved to be competent reactants for the reaction, providing the corresponding δ-sultones 3p and 3q in 63% and 87% yield, respectively.