Phosphorus–nitrogen compounds. Part XXVIII. Some reactions of 2,2,4,4-tetrachloro-6,6-diphenylcyclotriphosphazatriene with amines

Abstract

The replacement of chlorine in 2,2,4,4-tetrachloro-6,6-diphenylcyclotriphosphazatriene by amino-, anilino-, and dimethylamino-groups has been investigated. A range of chloroamino- and mixed amino-derivatives has been prepared. Structures are assigned from their dimethylamino-¹H n.m.r. spectra, and are confirmed in some cases from their basicities. The replacement of chlorine by amino- and anilino-groups follows a geminal reaction pattern whereas replacement by dimethylamino-groups follows a nongeminal pattern. An erroneous structural assignment is corrected, and hence an apparent contradiction in the literature is resolved. The preparations of 2,2-bisanilino- and 2,2-bisdimethylamino-4,4,6,6-tetraphenylcyclotriphosphazatrienes are reported.