【摘要】 几种双(α-次甲基羰基)化合物分别用两种氧化体系DMSO和HBr或DMSO,HCI和KI,进行氧化,得到了相应的双(1,2-二羰基)化合物。对所得到的产物进行了元素分析、质谱和1~H核磁共振谱测定。实验结果表明氧化产物的产量高,操作简便,原料价廉,为大量制备这类化合物创造了条件。更多还原

【Abstract】 The oxidation of bis（α-methylene carbonyl） compounds was studied byusing （i） DMSO and HBr or （ii） DMSO,HCl and KI as oxidizing agents.It is foundthat these reactions using DMSO with a suitable amount of HBr or HCl with KI resultin higher yield and higher purity of bis（1,2-dicarbonyl） compounds as compared withthe commonly used oxidizing agents,such as SeO₂. The yield and the melting points of these products as well as the elemental analysis,mass spectroscopy and NMR spectroscopy are reported in this paper.更多还原