Retraction: Bis-salophen palladium complex immobilized on Fe3O4@SiO2 nanoparticles as a highly active and durable phosphine-free catalyst for Heck and copper-free Sonogashira coupling reactions

Abstract

Retraction of ‘Bis-salophen palladium complex immobilized on Fe3O4@SiO2 nanoparticles as a highly active and durable phosphine-free catalyst for Heck and copper-free Sonogashira coupling reactions’ by Ali Reza Sardarian et al., Dalton Trans., 2019, 48, 3132–3145, https://doi.org/10.1039/C9DT00060G.