以碘单质为催化剂,在冰醋酸介质中,由芳香醛与5,5-二甲基-1,3-环己二酮衍生物制备标题化合物,该反应在室温下反应2 h,产率达86%～92%。该法具有反应时间短、产率高、操作简便和环境友好等优点。 The title compound was prepared from aromatic aldehydes and 5,5-dimethyl-1,3-cyclohexanedione derivatives using iodine as catalyst in glacial acetic acid. The reaction was carried out at room temperature for 2 h and the yield reached 86% ~ 92%. The method has the advantages of short reaction time, high yield, easy operation and environment friendliness.