Method for synthesizing cyclic carbonate ester in presence of acidic ionic liquid catalyst

The invention discloses a method for synthesizing cyclic carbonate ester in presence of an acidic ionic liquid catalyst, which relates to a method for synthesizing the cyclic carbonate ester. The invention solves the problems of strict reaction conditions, low catalyst activity, environmental pollution and high cost of the traditional method for synthesizing the cyclic carbonate ester. In the method of the invention, the acidic ionic liquid catalyst is adopted, and carbon diode and an epoxy compound undergo cycloaddition to form the corresponding cyclic carbonate ester. The method has the advantages of mild reaction conditions, high catalyst activity, environmental protection and low cost.