Synthesis and characterization of novel binuclear task-specific ionic liquid: an efficient and sustainable sulfonic-functionalized ionic liquid for one-pot synthesis of xanthenes

A new binuclear sulfonic-functionalized ionic liquid was synthesized in two steps and its dual solvent-catalytic activity was studied for the synthesis of a variety of xanthenes under mild conditions. The simple experimental and sustainable procedure, good yield of the desired products within short reaction times, and recyclability of the ionic liquid are some advantages of the present strategy, and the current work shows the great importance of task-specific ionic liquids in organic synthesis.