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在实验中使用了气相色谱、核磁共振氢谱及高分辨快原子轰击质谱跟踪了带α－取代酯基（羧酯基和磷酯基）的不饱和羧酸酯的碘诱导环化反应，提出一个新的中间体的概念和相应的反应机理，并根据该机理对反应条件作了改变，首次合成了带有α－取代酯基的不饱和羧酸酯的内酯化产物。
The iodine-induced cyclization reaction of unsaturated carboxylic acid esters with α-substituted ester groups (carboxylate and phospholipid) was followed by gas chromatography, 1H NMR and high resolution fast atom bombardment mass spectrometry A new intermediate concept and the corresponding reaction mechanism, and according to the mechanism of the reaction conditions have been changed for the first time synthesized with α-substituted ester group unsaturated carboxylic ester lactone.