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A Bio‐Inspired Magnetically Recoverable Palladium Nanocatalyst for the Ullmann Coupling reaction of Aryl halides and Arylboronic acids In Aqueous Media
Author(s) -
Dubey Abhishek V.,
Kumar A. Vijay
Publication year - 2020
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5570
Subject(s) - chemistry , aryl , halide , catalysis , palladium , aqueous solution , nanoparticle , coupling reaction , aqueous medium , nuclear chemistry , organic chemistry , polymer chemistry , combinatorial chemistry , nanotechnology , materials science , alkyl
Palladium nanoparticles supported on polydopamine‐coated iron oxide nanoparticles (Pd/Fe 3 O 4 @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.