Using a carboxyl-functionalized ionic liquid[CmmimBF4(IL)] as a novel reusable catalyst,1,5-benzodiazepine derivative(2) was synthesized by the condensation of o-phenylenediamine with acetone in the absence of solvent.

Simple preparation strategy for thiol-functionalized ionic liquid-driven synthesis of single crystalline gold nanoparticle chains at room temperature;

Synthesis of tri-butyl citrate using acid functionalized ionic liquid as catalyst;

Hydroxyl functionalized ionic liquid 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate([2-hydemim][BF4])was prepared under microwave irradiation via methylimidazolium,chlorohydrin and sodium tetrafluoroborate as materials.

This paper introduces the preparation of task-specific ionic liquids,summarizes the latest developments of task-specific ionic liquids in food industry,and discusses the developments of task-specific ionic liquids in preparation of raw materials,analysis and purification in food industry,as well as biotechnology.

The application oftask-specific ionic liquids with specific functional groups, which can be used as bothof reagent and medium, but also catalyze special reactions, further enhances theversatility of ionic liquids.

Task-specific ionic liquids can be used for the supports of organic synthesis, catalysis,ion conductive materials,separation of specific metal ions from aqueous solutions and so on.