1 Results Carbonyl compounds constitute an important group of molecules in organic chemistry,which appears in pharmaceuticals,dyes and industrially important chemicals[1-2].The oxidation of alcohols to the corresponding carbonyl groups is a fundamental transformation in organic chemistry and industrially important[3].There is considerable interest in the use of room temperature ionic liquids as promising substitutes for volatile organic solvents.The ambient-temperature ionic liquids,especially those based on 1,3-dialkylimidazolium cations,have been emerged as promising green solvents in recent decades[4].Some of the advantages of using ionic liquids in catalytic reactions are connected with the lack of a measurable vapor pressure.Products can be easily distilled out of the reaction mixture and the impact on the environment and operating personnel is dramatically reduced.In addition,due to the great choice of different ionic liquids,the solvent properties may be tuned to suit a particular application.In order to investigate such oxidation reactions in ionic liquids; the selective oxidation of alcohols to aldehydes was selected as a model reaction. 1 Results Carbonyl compounds constitute an important group of molecules in organic chemistry, which appears in pharmaceuticals, dyes and industrially important chemicals [1-2]. The oxidation of alcohols to the corresponding carbonyl groups is a fundamental transformation in organic chemistry and industrially important [ 3] .here is interest in the use of room temperature ionic liquids as promising substitutes for volatile organic solvents. Especially ambient based on 1,3-dialkylimidazolium cations, have been prepared as promising green solvents in recent decades [4]. Home of the advantages of using ionic liquids in catalytic reactions are connected with the lack of a measurable vapor pressure. Products can be easily distilled out of the reaction mixture and the impact on the environment and operating personnel is dramatically reduced. In addition, due to the great choice of different ionic liquids, the solvent properties may be tuned to suit a particu lar application.In order to investigate such oxidation reactions in ionic liquids; the selective oxidation of alcohols to aldehydes was selected as a model reaction.