Stabilization of Au NPs on symmetrical tridentate NNN-Pincer ligand grafted on magnetic support as water dispersible and recyclable catalyst for coupling reaction of terminal alkyne

摘要

Graphical abstractDisplay OmittedHighlights?Easy stabilization of AuNPs onto the magnetic support mediated by new class of symmetrical pincer ligand.?Successful application of the catalyst to one-pot synthesis of propargylamines using 0.07–0.1?mol% Au.?High water-dispersity and easy recovery of catalyst without leaching or aggregation of Au.?High yield of product without homocoupling byproduct.AbstractA symmetrical tridentateNNN-pincer ligand derived from 2-aminopyridine/cyanuric chloride was covalently grafted onto the surface of modified magnetic support to stabilize Au nanoparticle