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Magnetic Pd– Fe 3 O 4 Heterodimer Nanocrystals as Recoverable Catalysts for Ligand‐Free Hiyama Cross‐Coupling Reactions
Author(s) -
Lee WoongSup,
Byun Sangmoon,
Kwon Jungmin,
Kim B. Moon
Publication year - 2016
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.11013
Subject(s) - catalysis , steric effects , nanocrystal , ligand (biochemistry) , coupling reaction , aryl , chemistry , combinatorial chemistry , coupling (piping) , photochemistry , materials science , organic chemistry , nanotechnology , metallurgy , biochemistry , receptor , alkyl
Ligand‐free Hiyama cross‐coupling reaction was achieved through the use of Pd– Fe 3 O 4 heterodimeric nanocrystals (1 mol% in Pd) as recyclable catalysts. The nanocrystal catalysts exhibited good activities accommodating a variety of substrates including aryl bromides and iodides with substituents of varying electronic and steric properties. Furthermore, the nanocrystal catalyst could be conveniently recovered with the aid of an external magnet and recycled five times without the loss of catalytic activity to a considerable degree.