Synthesis process of dibenzoylmethane

The invention relates to a synthesis process of dibenzoylmethane. The synthesis process comprises the following steps: 1, carrying out pretreatment, 2, synthesizing dibenzoylmethane, 3, carrying out post-treatment, and 4, carrying out purifying. According to the method, methyl benzoate and acetophenone are taken as reactants, DBM is generated under the condition of sodium methoxide catalysis, thereaction is mild, explosive gas such as hydrogen is not generated in the reaction process, higher target compound yield can be obtained under the condition of low reactant dosage proportion, the process flow is simple, the production period is short, the later wastewater treatment is simple, and the production cost can be effectively reduced. 一种二苯甲酰甲烷的合成工艺，包括如下步骤：步骤一：前处理；步骤二：合成二苯甲酰甲烷；步骤三：后处理；步骤四：纯化。本发明通过以苯甲酸甲酯及苯乙酮为反应物，在甲醇钠催化条件下生成DBM，反应温和，反应过程无氢气等易爆气体产生，能够在低反应物用量比例下，获得更高的目标化合物收率；并且工艺流程简单，生产周期较短，后期废水处理简单，能够有效降低生产成本。