The CuFe₂O₄@SiO₂@ZrO₂/SO₄ ^2-/Cu nanoparticles: an efficient magnetically recyclable multifunctional Lewis/Bronsted acid nanocatalyst for the ligand- and Pd-free Sonogashira cross-coupling reaction in water.

ABSTRACT: Herein, the synthesis and application of copper-incorporated sulfated zirconium oxide supported on CuFe₂O₄ NPs (CuFe₂O₄@SiO₂@ZrO₂/SO₄ ^2-/Cu NPs) as a novel Lewis/Brønsted acid nanocatalyst were studied for the Sonogashira C-C cross-coupling reaction. The fabricated CuFe₂O₄@SiO₂@ZrO₂/SO₄ ^2-/Cu catalyst exhibited efficient activity for a large variety of aryl iodides/bromides and, most importantly, aryl chlorides in water and in the presence of NaOH as a base in short reaction times. The catalyst was fully characterized by FTIR, TG-DTG, VSM, XRD, EDX, FE-SEM and TEM analyses. A synergetic effect could be considered to have arisen from the v

SUBMITTER: Nasseri MA 

PROVIDER: S-EPMC9065763 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature