Nanochemistry
Fe3O4@silica sulfuric acid nanoparticles as a potent and recyclable solid acid catalyst for the synthesis of indole derivatives

Alireza Khorshidi; Shahab Shariati; Masoumeh Aboutalebi; Neda Mardazad

Volume 4, Issue 4, pp. 359-490, Serial No. 13 , October 2016, , Pages 476-482

Abstract
  Fe3O4 magnetic nanoparticles were synthesized by co-precipitation of Fe2+ and Fe3+ in aqueous NaOH. Then silica was coated on the obtained nanoparticles and the whole composite was functionalized with chlorosulfonic acid in CH2Cl2. The obtained nanocomposite (Fe3O4@SiO2-SO3H) was characterized by FT-IR, ...  Read More

Fe3O4@silica sulfuric acid nanoparticles as a potent and recyclable solid acid catalyst for the synthesis of indole derivatives