It was well known that catalytic amounts of K2CO3 gave lower conversions of the desired product. Until now, to the best of our knowledge, there is no report for only using a catalytic amount of K2CO3 for the selective oxidation of alcohols under air reaction conditions, and the K2CO3 catalytic oxidation mechanism remains unclear and undiscovered. Other than the oxidant and base used in the many traditional selective oxidation of alcohols, the common solvents used are mainly organic solvents like ACN, DMSO, DCM, etc. There has been an agreement that polar solvents inhibit the reaction, and smooth aerobic oxidation occurs in apolar solvents such as benzene. Some other groups also used toluene [45] and trifluoromethylbenzene instead, since they are superior solvents to benzene and lead to an important increase in reaction rates. As we all know, the organic solvent most comes from the coal and oil petroleum process, when we look around our planet, H2O is the safest, most economical, available, abundant, sustainable resource , or where we can call the "First solvent from GOD". Due to increasing environmental and sustainable consciousness, using water instead of organic solvents as a reaction medium is desirable. Water has been used as a solvent in many of the selective oxidation of alcohols. To achieve this goal one must keep in mind the problems of solubility and incompatibility of organic substrates when water is used as a solvent. Sheldon and his co-workers developed a water-soluble palladium (II) bathophenanthroline complex and successfully used it as a recyclable catalyst for the oxidation of alcohols in a biphasic water-alcohol system. The corresponding oxidized carbonyl compounds were obtained in good to excellent yield by using water as a solvent and air as the oxidant under the conditions at 1° alcohol and 1-phenylethanol (10 mmol), 2° alcohol (20 mmol), PhenS*Pd(OAc)2 (0.05 mmol), water (50 g), NaOAc