Study On Synthesis Of Adipic Acid And Aryl Azo Compounds Catalyzed By Ionic Liquids

After decades of development, ionic liquid entry into the task-specific ionic liquids(TSILs) stage. TSILs is obtained by the introduction of different types of functional groups on the basis of the original ionic liquid, such as hydroxyl, amino, carboxyl, ether and other basic cations and anions and alkyl sulfonic acid anion. Currently TSILs is widely used in organic synthesis. In addition, it also used for electrochemistry, biochemistry, materials chemistry and other fields.Heteropolyacid ionic liquid catalyst for Hantzsch, Biginelli, Mannich, and desulfurization reaction and so on. It is a versatile, high activity, and environment-friendly new catalyst. Therefore, it has a certain research value.In our study, five benzimidazole heteropolyanion-based ionic liquid was synthesized and investigated in the oxidation of cyclohexene with 30% hydrogen peroxide, and the results showed that [BSbBim]3PW12O40 has of best catalytic activity.Azo pyrazolone derivatives are a kinds of extremely valuable compounds, which are used as antimicrobial and therapeutic agents1 in medicinal chemistry, as chelating agents for metal ions in organometallic chemistry, as complexing agents for some metal ions, especially as dye in industrial chemistry. It is rarely reported that using triazene as azo source to synthesis the azo pyrazolone.In this paper, we used water as solvent, ionic liquids as promoter to synthesize various arylazo pyrazolone. The agreement provides a practical and harmless to the environment methods for a range of arylazopyrazolone were obtained in excellent yields at room temperature.