1,3-Cycloalkadiones were prepared by the reaction of l,2-bis(trimethylsiloxy)cycloalkenes with chloromethyl methyl ether followed by treatment of the resulting 2-hydroxy-2-methoxymethyl cycloalkanones with potassium hydrogen sulfate. The first step of the reactions was effectively catalyzed by active zinc reagents prepared from zinc–copper and alkyl iodides.
1,3-Cycloalkadiones 的制备方法是 l,2-双(三甲基
硅氧基)环烯与
氯甲基甲基醚反应,然后用
硫酸氢钾处理生成的 2-hydroxy-2-methoxymethyl cycloalkanones。由
锌-
铜和烷基
碘化物制备的活性
锌试剂有效地催化了反应的第一步。