Synthesis of 2-aminomethylpyridine derivatives of phosphazenes

Novel cyclophosphazenes (5-8) with pyridine side groups have been synthesized by the reactions of hexachlorocyclotriphosphazatriene, N3P3Cl6 (1), with 2-amino-3-methylpyridine (2), 2-amino-4-methylpyridine (3) and 2-amino-5-methylpyridine (4). Di- and monosubstituted products (5, 6) were obtained from the reaction of 1 with 2 and 3, respectively. Both di- and monosubstituted products (7, 8) were obtained from 2-amino-5-methylpyridine with 1. The structures of the compounds (5-8) were defined by IR, H-1, C-13 and P-31 NMR spectroscopy and elemental analyses.