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用普通固体酸氨基磺酸作催化剂，以苄醇和冰醋酸直接酯化合成乙酸苄酯。产物后处理由四步变为一步，收率８４％，催化剂可重复使用多次。
With ordinary solid acid aminosulfonic acid as catalyst, with benzyl alcohol and glacial acetic acid direct esterification of benzyl acetate. Product post-treatment step by step into four steps, the yield was 84%, the catalyst can be reused several times.