A new efficient method for preparation of acyclic α-acetylated β-diketone  copper(II) chelates and their corresponding geminal triketones by treatment of  starting β-diketone cuprates 1 with ketene is described.
                                    报道了一种制备非环状α-乙酰化
β-二酮铜(II)配合物及其相应的联三酮的高效新方法,该方法通过起始
β-二酮铜酸酯1与烯酮反应实现。