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In the reaction of 2-chloro-1,3,5-trimethyl-4,6-dioxo-1,3,5,2 λ 3 -triazaphosphinane (1) with β-chloroethylamine hydrochloride and bis-(β-chloroethyl)amine hydrochloride, 1,3,5-trimethyl-2-(β-chloroethyl)amino-4,6-dioxo-1,3,5,2 λ 3 -triazaphosphinane (4) and 1,3,5-trimethyl-2-bis-(β-chloroethyl)amino-4,6-dioxo-1,3,5,2 λ 3 -triazaphosphinane (5) were obtained. The reaction of 4 and 5 with sulfur, hexafluoroacetone, tetrachloroorthobenzoquinone and 4-nitrobenzoyl azide gave the 1,3,5-trimethy1-4,6-dioxo-1,3,5,2 λ 4 -triazaphosphinanes 6 and 9 and the 1,3,5-trimethyl-4,6-dioxo-1,3,5,2 λ 5 -triazaphosphinanes 7 and 8. The characterization of 4-9 rests, especially, on their  1 H,  13 C and  31 P NMR spectra, mass spectra and X-ray structure determinations of 4 and 5.

zeitschrift für naturforschung b

Zur Chemie der 4,6-Dioxo-1,3,5,2-triazaphosphinane, Teil III. Darstellung von 4,6-Dioxo-1,3,5,2 λ 3 -, 4,6-Dioxo-1,3,5,2 λ 4 - und 4,6-Dioxo-1,3,5,2 λ 5 -triazaphosphinanen / Chemistry of the 4,6-Dioxo-1,3,5,2 λ 3 -triazaphosphinanes, Part III. Synthesis of 4,6-Dioxo-1,3,5,2 λ 3 -, 4,6-Dioxo-1,3,5,2 λ 4 -, and 4,6-Dioxo- 1,3,5,2 λ 5 -triazaphosphinanes