Zinc (II)-Adenine complex functionalized on Fe3O4 nanoparticles via versatile, simple and inexpensive procedure. This nanostructural material was characterized by FT-IR spectroscopy, XRD, ICP-OES, TGA, EDS and SEM techniques. The catalytic activity of this novel catalyst has been studied in some organic reactions such as oxidation of sulfides, oxidative coupling of thiols and synthesis of 5-substituted tetrazoles. One of outstanding advantages of this nanocatalyst is its easy separation from reaction media by an external magnet.