Facial Preparation of Sulfonic Acid-Functionalized Magnetite-Coated Maghemite as a Magnetically Separable Catalyst for Pyrrole Synthesis
作者:Hajar Mahmoudi、Abbas Ali Jafari
DOI:10.1002/cctc.201300623
日期:2013.12
The synthesis, characterization, and catalytic performance of the new sulfonic acid supported on the magnetic nanoparticles with maghemite coating were reported. The morphology, particle size, structure, magnetic properties, and the formation of nanoparticles with narrow size distribution were investigated. Chemical analysis was performed by using TEM, wide‐angle XRD, FTIR spectroscopy, and X‐ray fluorescence
We describe a convenient and useful procedure for the synthesis of various 2,5-dimethyl-N-substituted pyrrole derivatives by the addition of 2,5-hexadione with aromatic amines, heteroaromatic amines and aliphatic amines catalyzed by MgI