The reduction of certain organic functions requires the search for safe and clean experimental methods, with simple equipment and at the lowest cost and obtaining better yields to facilitate and contribute to the creation of new compounds effective and having applications in many medical and industrial fields, so there is always a subject of interest and research in depth before the chemists. Among the reduction methods, there is what is called hybride reduction in very dry organic media that require difficult conditions. In addition, there are many products, which makes separation more difficult. As well as reduction by catalytic hydrogenation will require a reactor resistant to high pressure and high heat where this method is considered as a little use, because it is very expensive and only reduires double bonds and aromatic compounds. we therefore suggested in this study a way restore or reduction some organic fonctions) the function nitrile (using neonatal hydrogen from NaBH₄ through superticial reactions in aqueous medium under simple conditions and we will also tackle a comparative study of this method of reduction by NaBH₄ in presence of a heterogeneous catalyst )Pd/C10%( with the reduction by PMHS in organic medium in the presence of homogeneous catalyst TBAF..