Ni-complex-boehmite was prepared in water at room temperature using commercially available materials and applied as an efficient nanocatalyst in the oxidation of sulfides and thiols.

In this paper, we report a simple, facile and efficient method for the synthesis of Fe 3 O 4 /SiO 2 -DTZ-Pd. The immobilized palladium was an efficient catalyst without addition of phosphine ligands for Stille, Heck and N-arylation reactions. This method has some advantages such as high yields and easy work up of products.In addition, the catalyst can be recovered using a magnet and reused several times without significant loss of its catalytic activity. This catalyst was characterized by various physico-chemical techniques such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and inductively coupled plasma (ICP).