Abstract
AbstractPalladium nanoparticles supported on polydopamine‐coated iron oxide nanoparticles (Pd/Fe3O4@PDA) were found to catalyze the Ullmann homocoupling of a wide variety of aryl halides, arylboronic acids and aryldiazonium salts in aqueous media in the presence of randomly methylated β‐cyclodextrin (RM‐β‐CD). The synthesized nanoparticles were characterized by techniques such as TEM, SEM, EDX, XPS, ICP‐AES and XRD. The synthesized catalyst can be easily recovered magnetically and reused up to five cycles without any significant loss of activity. This is the first report demonstrating the use of magnetically recoverable catalyst for Ullmann homocoupling reactions of aryl halides, arylboronic acids and aryldiazonium salts in water.
Published Version
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