Phosphorus–nitrogen compounds. Part XXIII. Dimethylaminophenoxycyclotriphosphazatrienes

Abstract

A series of dimethylaminophenoxycyclotriphosphazatrienes, N₃P₃(NMe₂)_6–n(OPh)_n(n= 1–5), have been prepared by dimethylaminolysis of phenoxychlorocyclotriphosphazatrienes and by phenolysis of chlorodimethylaminocyclotriphosphazatriens. Chemical reactions and ¹H nuclear magnetic resonance spectra have been used to establish their structures and hence also those of their precursors, the phenoxychlorocyclotriphosphazatrienes, N₃P₃Cl_6–n(OPh)_n. The mechanistic implications of the non-geminal replacement of chlorine atoms in hexachlorocyclotriphosphazatriene by phenoxy-groups, and of the aminolysis and phenolysis reactions described in this Paper, are discussed in relation to the reaction scheme observed for other nucleophiles.