Reactions of cyclochlorotriphosphazatriene with 1-amino-2-propanol. Calorimetric and spectroscopic investigations of the derived products.

Abstract

Reactions of hexachlorocyclotriphosphazatriene, N3P3Cl6 (1) with 1-amino-2-propanol (2), in(1:1, 1:2 and 1:3) mole ratios, in excess of NaH, in THF and acetonitril solutions yield a totalof 6 novel products: one mono-open chain, N3P3Cl5[HN-CH2-CH(CH3)-OH] (3); onemonospiro, N3P3Cl4[O-CH(CH3)-CH2-NH] (4); one trans bis-open chain, N3P3Cl4[HNCH2CH(CH3)-OH]2 (5); one dispiro, N3P3Cl2[O-HC(CH3)-CH2-NH]2 (7); one tri-open chain,N3P3Cl3[HN-CH2CH(CH3)-OH]3 (6); and one tri-spiro, N3P3[O-HC(CH3)-CH2-NH]3(8)derivatives. These compounds have interesting structural aspects as well as physical properties.Their structures were established by elemental analysis, TL-MS, 31P and 1H NMR spectral data.Stability constants were determined using a simple potentiometric titration. For evaluation ofmelting behavior and purity of derivatives (7) and (8), thermal transition peaks and theircorresponding enthalpies were determined via DSC technique. Spectroscopic data, producttypes and relative yields are compared with those of the previously investigated derivatives ofN3P3Cl6 (1) with aliphatic difunctional reagents.