α,α-双酰基烯酮二硫代半缩酮的合成

Synthesis of α,α- Bisacyl ketene Dithio Semiketals

以碳酸钾为碱，β－二酮或β－酮酯和二硫化碳、溴乙醇反应。

The title compoands were synthesized directly from β-diketone or β-ketone ester, carbon disulfide, and 2-bromoethanol with potassium carbonate as base in one pot reaction