阐述了以环己酮为原料进行自缩合反应合成2,6-二苯基苯酚中间体三聚酮。考察了使用不同催化剂、反应温度、反应时间、催化剂用量、移除反应生成水等不同条件对反应的影响。试验表明,在以氢氧化钾为催化剂,反应温度175℃,反应时间2.5h-3h条件下,环己酮转化率达到80%,三聚酮收率达到38.9%,三聚酮选择性达到48.4%。 The synthesis of 2,6-diphenylphenol intermediate trimer ketone by cyclohexanone as self-condensation reaction was described. The influences of different conditions, such as different catalysts, reaction temperature, reaction time, amount of catalyst and removal of reaction water, on the reaction were investigated. The results showed that under the conditions of potassium hydroxide as catalyst, the reaction temperature was 175 ℃, the reaction time was 2.5h-3h, the conversion of cyclohexanone reached 80%, the yield of trimer ketone reached 38.9% and the selectivity of triketone reached 48.4 %.