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以ＫＩ－ＮａＩ为电解质，丙酮为溶剂，用间接电氧化的方法对乙酰丙酮进行电解氧化偶联反应，高产率地得到了３，４－二乙酰基－２，５－已二酮，用ＩＲ、ＵＶ、１ＨＮＭＲ、高分辩质谱等对其进行了表征，并用Ｘ射线衍射测定了晶体结构。该晶体属正交晶系，Ｐｂｃｎ空间群，ａ＝０．９１３９０（１０）ｎｍ，ｂ＝０．９４０５０（１０）ｎｍ，ｃ＝１．１８６１０（１０）ｎｍ，Ｚ＝４，Ｄｃ＝１．２９１×１０３ｋｇ／ｍ３。ＸＲＤ结果显示该分子完全以烯醇式存在，位于同一平面内，烯醇氢原子在分子内以不对称形式与邻近的氧原子缔合。
Using KI-NaI as electrolyte and acetone as solvent, acetylacetone was oxidatively coupled by indirect electrooxidation to obtain 3,4-diacetyl-2,5-dione with high yield. The product was characterized by IR , UV, 1HNMR, high resolution mass spectrometry, etc. The crystal structure was determined by X-ray diffraction. The crystal is orthorhombic in Pbcn space group, a = 0.91390 (10) nm, b = 0.94050 (10) nm, c = 1.18610 (10) nm, Z = 4 and Dc = 1. 291 × 103kg / m3. XRD results show that the molecule exists completely in enol form and lies in the same plane. The enol hydrogen atom is bonded to neighboring oxygen atoms in an asymmetric manner in the molecule.