Synthesis of sulfones via a reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, and aryliodoniums

An efficient approach to sulfones through a reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, and aryliodonium tetrafluoroborates under metal-free conditions is reported. This transformation proceeds in the presence of morpholin-4-amine and NaHSO3, leading to the formation of sulfones in moderate to good yields.