4‐triphenylmethylaniline substituted cyclotriphosphazene derivatives assisted by multiple phenyl rings

Abstract In the present study, nucleophilic substitution reactions of hexachlorocyclotriphosphazene ( 1 ) and 4‐triphenylmethylaniline ( 2 ) were carried out under different mole ratios. As a result of the reactions, mono ( 3 ), bis geminal ( 4 ), tetrakis geminal ( 5 ), and hexakis substituted ( 6 ) cyclotriphosphazene derivatives formed. The product diversity and yields of new cyclotriphosphazene derivatives ( 3–6 ) were comprehensively investigated by using the proton‐decoupled 31 P Nuclear Magnetic Resonance (NMR) spectra of the reaction mixtures. Pure cyclotriphosphazene derivatives ( 3 – 5 ) have been characterized by 1 H, 13 C and 31 P NMR, MALDI‐TOF mass and elemental analyses. The structure of compound 4 was also elucidated by single crystal X‐ray diffraction technique. Along with the spectroscopic techniques, the thermal stabilities of 4‐triphenylmethylaniline substituted cyclotriphosphazene derivatives ( 4 and 5 ) were determined by thermogravimetric analysis (TGA) technique.