Heterogeneous catalysts hold the edge over homogeneous systems: Zeolite-Y encapsulated complexes for Baeyer-Villiger oxidation of cyclohexanone
作者:Jignasu P. Mehta、Digvijaysinh K. Parmar、Dinesh R. Godhani、Haresh D. Nakum、Nisheeth C. Desai
DOI:10.1016/j.molcata.2016.05.016
日期:2016.9
(XRD), UV–vis and infrared spectroscopies, and scanning electron microscopy (SEM). Zeolite-Y encapsulated complexes were tested in Baeyer-Villiger (B-V) oxidation of cyclohexanone beside neat complexes to check the aptitude of heterogeneous catalysis over the homogeneous system. The effect of experimental variables viz., solvents, catalysts amount, the mole ratio of substrate to an oxidant, temperature
摘要 一系列非均相催化剂[M(pamp)]-Y (其中,M = V, Mn, Fe or Cu; pamp = 2,2'-((1 E ,1' E )-(1,2-phenylenebis (azanylylidene))bis(methanylylidene))diphenol) 是通过在沸石-Y 中包封金属络合物来制备的。通过化学、BET 和热重 (TG) 分析、X 射线衍射 (XRD)、紫外-可见和红外光谱以及扫描电子显微镜 (SEM) 对合成材料进行了表征。除了纯配合物外,在环己酮的 Baeyer-Villiger (BV) 氧化中测试了沸石-Y 包封配合物,以检查均相系统上的多相催化能力。还测试了实验变量即溶剂、催化剂用量、底物与氧化剂的摩尔比、温度和反应时间对底物转化率的影响。