Synthesis and characterization of Cu(II) containing nanosilica triazine dendrimer: A recyclable nanocomposite material for the synthesis of benzimidazoles, benzothiazoles, bis-benzimidazoles and bis-benzothiazoles
The present study describes the synthesis, characterization, and catalytic activity of Cu(II) containing nanosilica triazine dendrimer (Cu(II)-TD@nSiO2). The prepared catalyst was characterized by FT-IR, TGA, elemental analysis, UV–vis, FE-SEM, TEM, XPS and ICP-OES techniques. The Cu(II)-TD@nSiO2 has been used as an efficient catalyst for the preparation of various benzimidazoles, benzothiazoles, symmetrical