Synthesis of Nitroolefins and Nitroarenes under Mild Conditions

1,3-Disulfonic acid imidazolium nitrate {[Dsim]NO₃} was prepared and characterized as a new ionic liquid and nitrating agent for the ipso-nitration of various arylboronic acids and nitro-Hunsdiecker reaction of different α,β-unsaturated acids and benzoic acid derivatives, by in situ generation of NO₂ to give various nitroarenes and nitroolefins without using any cocatalysts and solvents under mild conditions.