N-heterocyclic carbene-Pd(II) complex based on theophylline supported on Fe3O4@SiO2 nanoparticles: Highly active, durable and magnetically separable catalyst for green Suzuki-Miyaura and Sonogashira-Hagihara coupling reactions

N-Heterocyclic carbene-Pd(II) complex based on theophylline supported on Fe3O4@SiO2 NPs as a catalyst for green Suzuki-Miyaura and Sonogashira-Hagihara coupling reactions.239