Sonochemical Synthesis of 2, 3-Diphenylquinoxaline Using Different Catalysts, a Green Chemistry Approach

A simple, highly efficient and green procedure for the condensation of aryl and alkyl 1, 2-diamines with α-diketones in the presence of different catalyst at room temperature is described. And the recycled catalyst was used for the next run under identical reaction conditions. Using this method, quinoxaline derivatives as biologically interesting compounds are produced in high to excellent yields and short reaction times. Present synthesis complies with principle of Green chemistry. As part of current studies, we here in report efficient practical technique of sonication reaction (sonosynthesis). The overall progress of the reaction was monitored by TLC and characterized by IR and NMR. Compared with traditional methods, these methods are more convenient and reactions can be carried out in higher yield, shorter reaction time and milder conditions, without generation of pollution and safer to analyst. The synthesized 2, 3-diphenyle quinoxaline was confirmed by physical constant and spectroscopic studies. Low cost, reuse of worn catalyst and maximum efficiency are some advantages of this synthesis. Compared with traditional method, this method is more convenient and reactions can be carried out in higher yield, shorter reaction time and milder conditions, without generation of pollution and safer to analyst. From these features present methods can be correlated for safer and efficient synthesis of other products.