Method for synthesizing benzyl acetate by using combined catalytic system

The invention provides a method for synthesizing benzyl acetate by using a combined catalytic system, and belongs to the technical field of fine chemical engineering. According to the synthesis method, by taking dibenzyl ether as a raw material, selecting a combined catalyst comprising three components, namely a main catalyst, a leaving group and a trapping agent as a catalyst, the raw material reacts with acetic anhydride to obtain a crude product, and then rectification and purification are performed to obtain a benzyl acetate finished product. The main catalyst activates acetic anhydride and promotes formation of a reaction intermediate; the leaving group promotes the leaving of benzyl and inhibits the intramolecular rearrangement of benzyl; the trapping agent traps removed benzyl positive ions, helps elimination of benzyl, promotes the reaction to proceed to a main reaction route and inhibits generation of side reactions, the three components have a synergistic effect, the single-pass reaction yield of be