960化工网
Pd complex of an NNN pincer ligand supported on γ-Fe2O3@SiO2 magnetic nanoparticles: a new catalyst for Heck, Suzuki and Sonogashira coupling reactions
Sara Sobhani,Zohre Zeraatkar,Farzaneh Zarifi
New Journal of Chemistry Pub Date : 06/30/2015 00:00:00 , DOI:10.1039/C5NJ00344J
Abstract

In this study, a Pd complex of bis(imino)pyridine as an NNN pincer ligand supported on γ-Fe2O3@SiO2 magnetic nanoparticles (Pd-BIP-γ-Fe2O3@SiO2) was synthesized and characterized by SEM, TEM, FT-IR, TGA, ICP, XRD, XPS, VSM and elemental analysis. The synthesized catalyst was used successfully as a new air- and moisture-stable phosphine-free Pd catalyst for Heck, Suzuki and Sonogashira coupling reactions of aryl iodides, bromides and chlorides with alkyl acrylates, styrene, phenylboronic acid and phenylacetylene. The true heterogeneous magnetically-recyclable catalyst can be separated easily using a magnetic bar and reused ten times without any drastic loss of its catalytic activity.

Graphical abstract: Pd complex of an NNN pincer ligand supported on γ-Fe2O3@SiO2 magnetic nanoparticles: a new catalyst for Heck, Suzuki and Sonogashira coupling reactions
平台客服
平台客服
平台在线客服