10.1016/j.poly.2011.03.028
The research investigates the stereogenic properties of cyclotriphosphazene derivatives with two different chiral centers. The purpose is to explore the geometric isomers and racemic forms of these compounds, which have potential applications in various fields due to their chirality. Key chemicals used include hexachlorocyclotriphosphazene (N3P3Cl6) and gem-disubstituted cyclotriphosphazene derivatives (N3P3Cl4X2, where X = Ph, PhS, PhNH), which were reacted with N-methyl-1,3-propanediamine and 3-amino-1-propanol to produce compounds with two different stereogenic phosphorus atoms. The geometric isomers were separated and characterized using techniques such as X-ray crystallography, 31P and 1H NMR spectroscopy, and chiral HPLC. The study confirmed that these compounds exist as cis and trans geometric isomers and as two different racemic isomers. The enantiomers of the racemic compounds were analyzed using a chiral solvating agent (CSA) and chiral HPLC methods developed for this study. The conclusions highlight the successful synthesis and characterization of these chiral cyclotriphosphazene compounds, providing insights into their stereogenic properties and potential uses in chiral chemistry.