中文摘要：

首先将乙酰丙酮、苯甲酰丙酮、二苯甲酰甲烷等β-二酮类化合物转变成相应的碳负离子,再用四氢呋喃作溶剂,以Br2为氧化剂,进行活性亚甲基的偶联反应,从而合成了3种相应的四羰基化合物,产率依次为91.2%,62.1%和42.6%.对影响反应的相关因素进行了讨论,并确定了最佳反应条件.

英文摘要：

β-dicarbonyl compounds such as acetylaeetone, benzoylacetone, dibenzoylmethane etc were transformed into corresponding sodium salts firstly, then tetracarhonyl compounds were prepared by the oxidative coupling reaction of active methylene, using the THF as solvent and Br2 as oxidant. The yields were 91.2%, 62.1% and 42.6%, respectively. The factors which influence the reaction were discussed and the optimal conditions were acquired.