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Biguanidine‐functionalized chitosan to immobilize palladium nanoparticles as a novel, efficient and recyclable heterogeneous nanocatalyst for Suzuki–Miyaura coupling reactions
Author(s) -
Veisi Hojat,
Ghadermazi Mohammad,
Naderi Akram
Publication year - 2016
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.3437
Subject(s) - chemistry , phenylboronic acid , catalysis , palladium , leaching (pedology) , aryl , chitosan , suzuki reaction , reusability , chlorobenzene , halide , coupling reaction , yield (engineering) , combinatorial chemistry , heterogeneous catalysis , nanoparticle , organic chemistry , polymer chemistry , nanotechnology , materials science , metallurgy , alkyl , environmental science , software , computer science , soil science , soil water , programming language
Biguanidine‐functionalized chitosan was synthesized and combined with palladium nanoparticles to yield a recyclable, environmentally benign, heterogeneous catalytic system for the Suzuki–Miyaura C–C coupling reaction . The catalyst was characterized using various techniques. The catalyst was used in Suzuki cross‐coupling reactions of various aryl halides, including less reactive chlorobenzenes, with phenylboronic acid to give biaryls without any additive or ligand. A reusability test demonstrated that the catalyst was highly efficient even after six runs. Solid‐phase poisoning and leaching tests indicated that the catalyst has a heterogeneous nature. Copyright © 2016 John Wiley & Sons, Ltd.