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Highly stable magnetically separable copper nanocatalyst as an efficient catalyst for C(sp 2 )–C(sp) and C(sp 2 )–C(sp 2 ) cross‐coupling reactions
Author(s) -
Keypour Hassan,
Balali Masomeh,
Nejat Razieh,
Bagherzadeh Mojtaba
Publication year - 2017
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.3691
Subject(s) - catalysis , chemistry , copper , inductively coupled plasma , coupling reaction , copper oxide , analytical chemistry (journal) , nuclear chemistry , sonogashira coupling , inorganic chemistry , x ray photoelectron spectroscopy , copper chloride , palladium , chemical engineering , organic chemistry , quantum mechanics , engineering , physics , plasma
A copper catalyst has been explored as an efficient and recyclable catalyst to effect Sonogashira and Suzuki cross‐coupling reactions. After modification of 2‐(((piperazin‐1‐ylmethyl)imino)methyl)phenol (PP) on the surface of amorphous silica‐coated iron oxide (Fe 3 O 4 @SiO 2 @Cl) magnetic core–shell nanocomposite, copper(II) chloride was employed to synthesize the Fe 3 O 4 @SiO 2 @PP‐Cu catalyst, affording a copper loading of 1.52 mmol g −1 . High yield, low reaction times, non‐toxicity and recyclability of the catalyst are the main merits of this protocol. The catalyst was characterized using Fourier transform infrared, X‐ray photoelectron, energy‐dispersive X‐ray and inductively coupled plasma optical emission spectroscopies, X‐ray diffraction, scanning and transmission electron microscopies, and vibrating sample magnetometry.