GRAPHICAL ABSTRACT
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Abstract
A series of phosphonium salts with sterically hindered cation But3P+(CH2COOEt)X− (X = Cl, BF4, N(SO2CF3)2) (1) was prepared for the first time. Palladium nanoparticles (PdNPs) stabilized by (1) showed moderate activity as catalyst in Suzuki cross-coupling reaction of bromoarenes and phenylboronic acid.