以二苯甲酮、氯乙酸乙酯、甲醛水溶液和碘甲烷为主要原料,经达森缩合、酯水解、脱羧、重排、缩合歧化和醚化反应合成了标题化合物,并对合成反应中的关键影响因素进行了研究。在适宜的反应条件下,目标产物的总收率61.3%(以二苯甲酮计),产品气相色谱纯度为97.4%。1HNMR分析确定了目标化合物的结构。 The title compounds were prepared by the condensation of dansyl, ester hydrolysis, decarboxylation, rearrangement, condensation and disproportionation and etherification with benzophenone, ethyl chloroacetate, formalin and methyl iodide as main raw materials. The key influencing factors were studied. Under appropriate reaction conditions, the total yield of the target product is 61.3% (based on benzophenone) and the product has a GC purity of 97.4%. 1H NMR analysis confirmed the structure of the target compound.