金属卟啉催化氧气选择氧化对甲基异丙苯绿色合成对甲基苯乙酮

• 作 者: 唐艳柳 蔡烨 吴腊梅 佘远斌
• 机 构: 中南民族大学化学与材料学院,浙江工业大学化学工程学院,
• 出 处: 化学试剂
• 发表日期: 2016年02期
• 关键词: 甲基苯乙酮 异丙苯 金属卟啉 催化氧化 催化剂 对甲基异丙苯 氧气压力 催化活性 甲基 选择氧化

以对甲基异丙苯为原料、无溶剂条件下,选取不同环外取代基和中心金属离子的金属卟啉作为催化剂,氧气为氧源,绿色氧化对甲基异丙苯合成对甲基苯乙酮。探讨了不同种类催化剂的催化活性、不同浓度的催化剂、反应温度和氧气压力对目标化合物的选择性和收率的影响。实验显示,在T(p-OCH_3)PPCo Cl作为催化剂、反应温度为110℃、压力为2.0 MPa时,对甲基异丙苯的转化率为43.4%,对甲基苯乙酮的选择性高达47.4%,收率为20.7%。

Using p-cumylbenzene as raw material and without solvent, metalloporphyrins with different ring substituents and central metal ions as the catalyst, oxygen as oxygen source and p-methylbenzene Ethanone. The catalytic activities of different kinds of catalysts, the effects of different concentrations of catalyst, reaction temperature and oxygen pressure on the selectivity and yield of the target compounds were discussed. The experimental results showed that the conversion of p-cumylbenzene was 43.4% and the selectivity of p-methylacetophenone was as high as T (p-OCH_3) PPCoCl as catalyst at the reaction temperature of 110 ℃ and the pressure of 2.0 MPa 47.4%, yield 20.7%.