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Phosphorylated PEG (PPEG) as a new support for generation of nano‐Pd(0): application to the Heck–Mizoroki and Suzuki–Miyaura coupling reactions
Author(s) -
Iranpoor Nasser,
Firouzabadi Habib,
Riazi Asma,
Shakerpoor Alireza
Publication year - 2013
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.3002
Subject(s) - chemistry , phosphinite , catalysis , peg ratio , polyethylene glycol , coupling reaction , peg 400 , solvent , nano , ethanol , combinatorial chemistry , nuclear chemistry , organic chemistry , chemical engineering , finance , engineering , economics
Polyethylene glycols (PEGs) with different molecular weights ( M w = 200, 400, 1000) were phosphorylated to their bis ‐diphenyl phosphinite derivatives as stable solids which are melted in the range 140–160°C. These phosphorylated PEGs were used as ligands and reducing agents to generate nano‐Pd(0) catalysts in 2.5–8.3 nm. The nano‐Pd(0) particles supported on phosphorylated PEG 200 were applied for the efficient Heck–Mizoroki carbon–carbon coupling reactions of ArX (X = Cl, Br, I) at 80–100°C under solvent‐free conditions and for the Suzuki–Miyaura coupling reaction in ethanol at 70°C. The catalyst was recycled easily and reused for several runs. Copyright © 2013 John Wiley & Sons, Ltd.