NHPI和磺化酞菁钴催化的环己烷氧化反应

Oxidation of Cyclohexane Catalyzed by NHPI and CoSPc

摘要:

以N-羟基邻苯二甲酰亚胺(NHPI)和磺化酞菁钴(CoSPc)组成的催化体系对环己烷的氧化反应进行了研究，通过对反应时间、温度、NHPI用量、磺化酞菁钴用量的考察，得出环己烷氧化的最优反应条件为：反应时间2 h，反应温度80℃，n(环己烷):n(NHPI)=10:1，n(NHPI):n(CoSPc)=6:1。氧化反应产物的组成分析是在气相色谱上用内标法进行的，产物除了环己酮和环己醇外，还发现了乙酸环己酯。在最优反应条件下，环己酮、环己醇、乙酸环己酯的产率及总产率为10.5%、1.1%、0.4%和12.0%。

Abstract:

The oxidation of cyclohexane catalyzed by N-hydroxyphthalimide(NHPI) and cobalt sulphonated phthalocyanine(CoSPc) was investigated, in which GC was used to analyze the composition of oxidation products, except the normal products cyclohexanone and cyclohexanol, cyclohexanol acetate was fond and verified, according to standard sample. The effect of reaction time, temperature, the amount of NHPI and/or CoSPc were examined, the optimal reaction conditions of cyclohexane oxidation were as follows: reaction time 2 h, reaction temperature 80℃, n(Cyclohexane) : n(NHPI) = 10:1, n(NHPI) : n(CoSPc) = 6:1. Under the optimal conditions, the 10.5% yield of cyclohexanone, 1.1% of cyclohexanol and 0.4% of cyclohexanol acetate were gotten, and the total yield reached 12.0%.