Conventionally, heterogeneous catalysis is favored over homogeneous catalysis because they have more advantages, such as the simplicity in recovery and regeneration. Despite the easy synthesis procedures, heterogeneous catalysts are often suffered from lower efficiency than their homogeneous counterparts. Nowadays, metal nanoparticles are highly attractive tools for catalysis because of their high surface area-to volume ratio. Wide application of bond formation reactions C-C, C-N, C-O in various fields such as pharmacy, natural products and synthesis of active ingredients were caused these reactions convert to powerful tools in organic chemistry. In this thesis, palladium nanoparticles was immobilized an magnetic and coordinated with cysteine active ligand. This catalytic system characterized with SEM, TEM, EDX, FT-IR, XRD and VSM analysis. Then efficiency of nanocatalyst was evaluated in C-C, C-O and amination reactions.The results indicated high activity of catalyst in these reactions under mild and green conditions. One of the aims of green chemistry is the decrease of environmental pollutions by organic solvents. Our initial goal was to use a green media for these reactions. Fortunately, the C-C and C-N reactions takes place in excellent conversion in solvent free conditions. The products were characterized by FT-IR and 1 HNMR. Recovery of catalyst after at the end of reaction was done simply by an external magnet. The recycling experiment demonstrated that quantitative conversion to the corresponding products was observed for ten runs.