Abstract
Multidisciplinary research in chemistry, physics and other engineering sciences often addresses nanotechnology. In almost all branches of science and technology, nanotechnology is commonly used. Nanomaterials are not just something developed in the laboratory but nanotechnology has made it possible for humans to manufacture nanoform-containing materials. Metal nanoparticles have been used in different areas such as catalysis, sensor, and medicine. Nanoparticles have good efficiency, selectivity and yield of catalytic processes. Nanoparticles have higher selectivity in the reactions because the reactions continue with fewer impurities and less waste. Hence this technique is safer and more environmental-friendly. The specific emphasis of this chapter is on the applications of nanoparticles in organic synthesis.