期刊
NEW JOURNAL OF CHEMISTRY
卷 44, 期 31, 页码 13266-13278出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0nj01610a
关键词
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资金
- research council of Shiraz University
- research council of Niroo Research Institute
- research council of Payame Noor University (PNU)
- Iran National Science Foundation
An effective and general aryl amination protocol has been developed using a magnetically recoverable Ni(0) based nanocatalyst. This new stable catalyst was prepared on Fe3O4@SiO(2)modified by EDTA and investigated by FT-IR, EDX, TEM, XRD, DLS, FE-SEM, XPS, NMR, TGA, VSM, ICP and elemental analysis techniques. The reaction proceededviacarbon-oxygen bond cleavage of (hetero)aryl carbamates and sulfamates under simple and mild conditions without the use of any external ligands. This method demonstrated functional group tolerance in theN-arylation of various nitrogen-containing compounds as well as aliphatic amines, anilines, pyrroles, pyrazoles, imidazoles, indoles, and indazoles with good to excellent yields. Furthermore, the catalyst could be easily recovered by using an external magnetic field and directly reused at least six times without notable reduction in its activity.
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