Dendron-functionalized Fe3O4 magnetic nanoparticles with palladium catalyzed CN insertion of arylhalide for the synthesis of tetrazoles and benzamide

Add time:08/25/2019    Source:sciencedirect.com

A novel method for the one-pot synthesis of 5-substituted 1H-tetrazoles and Benzamide from arylhalide containing in situ CN insertion from inorganic salt source was accomplished in presence of a new magnetically catalyst, palladium on surface-modified Schiff-Base complex. K2[Ni(CN)4] plays a role of nontoxic inorganic cyanide source in arylhalide Nucleophilic substitution. The synthesized [email protected]3O4MNPs was characterized by various techniques such as FT-IR, TGA, SEM, VSM, XRD, TEM, ICP-AES, EDX, BET and XPS. The nano structure catalyst was easily recovered by external magnetic field and reused several times without noticeable loss of its catalytic activity. Leaching study of [email protected]3O4 MNPs shows palladium strong bonded to different active parts of catalyst surface. Heterogeneity of this catalyst has been examined using hot filtration and ICP-AES techniques.

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