胶束催化氧化合成对硝基苯甲酸

Micelles Catalytic Oxidation for the Synthesis of p-Nitrobenzoic Acid

考察了以重铬酸钠为氧化剂 ,胶束催化氧化合成对硝基苯甲酸的有关影响因素。在所选用的表面活性剂中 ,以十二烷基二甲基苄基溴化铵的催化效果最好 ,产品收率最高达 94 6% ,提高 5%～ 1 2 % ;反应温度降低约 50℃ ;且催化剂用量极少。胶束催化方法对互不相溶的两相反应有很好的应用前景。

For the synthesis of p-nitrobenzoic acid by means of micelles catalytic oxidation,sodium dichromate is used as oxidant,and the best catalyst is found to be dodecyl dimethyl benzyl ammonium bromide.The yield is 5%～12% higher than that found in the literature and the reaction temperature is 50 ℃ lower than that of conventional method.[