Organosuperbase dendron manganese complex grafted on magnetic nanoparticles; heterogeneous catalyst for green and selective oxidation of ethylbenzene, cyclohexene and oximes by molecular oxygen
作者:Ali Reza Faraji、Fatemeh Ashouri、Zahra Hekmatian、Somayyeh Heydari、Sima Mosazadeh
DOI:10.1016/j.poly.2018.09.030
日期:2019.1
organosilicon and cyanoric choloride ligands. The novel manganese complex was grafted on modified magnetic support (Mn(II)-Met@MMNPs). The nanocatalyst structure, particle size, morphology and surface properties was well characterized by elemental analysis, ICP-AES, AAS, EDS, FT-IR, SEM, TEM, DLS, VSM, TGA, XRD and XPS. In order to develop an effective heterogeneous nanocatalyst for eco-friendly aerobic, highly
摘要用氨基端基有机硅和氰化氯离子配体修饰了Fe3O4磁性纳米粒子为载体。新型锰配合物嫁接到改性的磁性载体(Mn(II)-Met @ MMNPs)上。通过元素分析,ICP-AES,AAS,EDS,FT-IR,SEM,TEM,DLS,VSM,TGA,XRD和XPS对纳米催化剂的结构,粒度,形态和表面性质进行了很好的表征。为了开发用于生态友好的需氧,高活性和选择性催化反应的有效多相纳米催化剂,将合成的纳米催化剂用于各种有机化合物的氧化。研究了锰纳米催化剂在乙苯(EB),环己烯(CYHE)以及各种醛肟和酮肟的好氧氧化中的催化性能。Mn纳米催化剂使用N-羟基邻苯二甲酰亚胺(NHPI)和分子氧作为绿色氧化剂,不需要任何还原剂,而苯乙酮(AcPO)作为苄基产物,通过Mn纳米催化剂催化EB和CYHE以及各种肟的选择性好氧氧化。获得2-烯丙基产物2-环己烯-1-酮(CYHE O)和相应的羰基化合物。考虑到不同参数(例如锰纳米催化剂/