Synthesis of Organic−Inorganic Hybrid Solids with Copper Complex Framework and Their Catalytic Activity for the S-Arylation and the Azide−Alkyne Cycloaddition Reactions

Two different diamines, namely, Tröger base and dimethylethylene diamine (DMEDA) functionalized with disilane groups, have been condensed with silica precursors to form mesoporous hybrid organic−inorganic materials. After introduction of copper, the Cu-diamine complexes are produced. These hybrid solids have been fully characterized and are active catalysts for the S -arylation of aryl iodides and bromides with thiophenols and disulfides. Additionally, the hybrids show catalytic activity for the cycloaddition reaction between azides and phenylacetylenes. The reaction conditions determine the recovery and reuse of the solid.