Phosphorus–nitrogen compounds. Part XXII. The reactions of hexachlorocyclotriphosphazatriene with isopropylamine

Abstract

Reactions of hexachlorocyclotriphosphazatriene with isopropylamine in ether, benzene, or chloroform give five derivatives, N₃P₃Cl_6–n(NHPrⁱ)_n[n= 1, 2, 4 (2 isomers), or 6], as well as two phosphazene hydrochlorides, N₃P₃Cl_6–n(NHPrⁱ)_n, HCl (n= 4 or 6). A series of dimethylaminoisopropylaminocyclotriphosphazatrienes, N₃P₃(NMe₂)_6–n(NHPrⁱ)_n[n= 1, 2 (2 isomers), and 4 (3 isomers)] has been prepared and their structures have been investigated by means of ¹H nuclear magnetic resonance spectroscopy. These results, together with basicity measurements on the chloroisopropylaminocyclotriphosphazatrienes indicate that the replacement of chlorine atoms by isopropylamino-residues in hexachlorocyclotriphosphazatriene gives rise to both geminal and non-geminal structures.