A new Pd(II)‐supported catalyst on magnetic SBA‐15 for CC bond formation via the Heck and Hiyama cross‐coupling reactions
Leila Rahimi, Yagoub Mansoori, Ayat Nuri, Behzad Koohi‐Zargar, Dolores Esquivel
Abstract
Magnetic mesoporous silica composite (MNP@SiO 2 ‐SBA) was obtained via embedding magnetite nanoparticles between SBA‐15 channels. It was silylated with N ‐(3‐(trimethoxysilyl)propyl)picolinamide (TMS‐PCA) and then complexed with Pd(II). The obtained supported Pd(II) catalyst (MNP@SiO 2 ‐SBA‐PCA) was characterized by conventional methods. The prepared magnetic catalyst showed high activity in the Heck and Hiyama reactions under optimal reaction conditions, including solvent, amount of catalyst, base, and temperature. Aryl bromides and iodides showed better results than aryl chlorides, and the catalyst exhibited noticeable stability and reused several times.
Topics & Concepts
ChemistryCatalysisArylHeck reactionMesoporous silicaMesoporous materialPolymer chemistryBase (topology)Coupling reactionMagnetiteSolventHeterogeneous catalysisMagnetic nanoparticlesPalladiumOrganic chemistryNanoparticleChemical engineeringEngineeringAlkylMathematicsMetallurgyMaterials scienceMathematical analysisCatalytic Cross-Coupling ReactionsNanomaterials for catalytic reactionsCatalytic C–H Functionalization Methods