S-Benzylisothiourea Complex of Palladium Supported on Modified Mesoporous Magnetic Nanoparticles (Pd-SBTU@Fe3O4@SBA-3) as Sustainable Environmental Catalyst for Suzuki and Stille Reactions

A new and efficient magnetic mesoporous material has been designed and prepared via immobilization of S-benzylisothiourea complex of palladium on SBA-3 mesoporous silica magnetite nanoparticles. This novel, architecturally interesting magnetic nanocomposite was fully characterized using different analytical techniques such as FT-IR, BET, FE-SEM, ICP-OES and TGA. Catalytic activity of this material was successfully explored in carbon-carbon cross-coupling reactions (Suzuki and Stille reactions). The stability of the catalytic activity was examined using reusability test through four consecutive batch runs. Green conditions of the reactions, easy separation, short reaction times, reusability of the catalyst, and excellent yields of products make the present protocol practical and sustainable among the similar reported cross-coupling reactions. [GRAPHICS] .

Automated summary

A new and efficient magnetic mesoporous material was designed and prepared for carbon-carbon cross-coupling reactions. The catalytic activity of this material was stable and reusable, leading to high yields of products under environmentally friendly conditions.