The nucleophilic substitution reaction of hexachlorocyclotriphosphazene (N3P3Cl6, trimer) (1) with 4- hydroxy-1-naphthaldehyde (2) has been investigated for the first time. 4′ -Oxy-1′ -naphthaldehyde substituted mono- (3), bis- (4), and tris- (5) cyclotriphosphazenes were obtained from the nucleophilic substitution of compound 1 with 2 in a 1:2 molar ratio in the presence of Cs2CO3 in acetone at reflux. The pentakis-(6) and hexakis-substituted (7) cyclotriphosphazenes were prepared from the reaction of 1 with 2 in a 1:7 molar ratio using K2 CO3 as a proton abstractor in tetrahydrofuran at room temperature. The structures of the new compounds (3–7) were determined by elemental analysis, FT-IR, and mass and nuclear magnetic resonance (1H and 31P) spectroscopies. |
