Magnetically retrievable 2-(2-Pyridyl)benzimidazole-Cu(I) on SBA-15@Fe₃O₄ for sodium Azide-Induced amination of Aryl halides

We extend our deepest gratitude for the generous financial support provided by the Graduate Council of the University of Mohaghegh Ardabili (Iran, project no. 1401/D/13/28439). The authors would also like to express their sincere thanks to Dr. Michael John from the Institut fur Anorganische Chemie (Georg-August-Universitaet Goettingen) for recording the CP MAS 13C NMR spectrum.