Synthesis of new bis(diphenylphosphino)amines, investigation of their reactions with aldehydes and ketones and preparation of their derivatives

The synthesis and coordination chemistry of phosphorus(III) ligands containing P-N linkages have received widespread attention. Potentially this ligand family is quite attractive since preparative routes enable access to various structural modifications via simple P-N bond formation. In this context, bis(phosphino)amines have attracted considerable interest in recent years as they are used in organometallic chemistry and catalysis as well as in anticancer researches. Among the bis(phosphino)amines, the bis(diphenylphosphino)aniline derivatives are the most frequently used precursors in investigations because of their facile synthesis and relatively high stability. Starting from the commercially available aniline derivatives, a large number of bis(diphenylphosphino)anilines have been prepared and their reactivities have been investigated.Insertion of aldehydes or ketones into the P-N bond leads to the formation of ?-aminophosphonates. These inserted products are biologically important as they are the key precursors for synthesizing numerous antibacterial, antiviral and antifungal active ?-aminophosphonic acid derivatives.Present study describes the synthesis of new bis(phosphino)amines and their chalcogen derivatives as well as several transition metal (Pt, Pd in some cases Cu, Ni) complexes. Furthermore, the bis(phoshino)amines were reacted with some aldehydes or ketones to afford inserted products. All new compounds were characterized by microanalysis, IR, NMR spectroscopy and in several cases by X-ray crystallography.