Optimized Synthesis and Mechanism of Formation of 2,4-Dichloro-1,3-bis(dichlorophosphoryl)-2,4-dioxocyclodiphosph(v)azane from Phosphoryl Chloride and Ammonium Chloride
Detailed investigation of the reaction between Cl and an excess of POCl3 has established a procedure for isolation of the main product, the novel title cyclodiphosph(v)azane, and permitted the identification of three other reaction products, namely, pyrophosphoryl chloride, hexachlorocyclotriphosph(v)azane, and PPP-trichloro-N-dichlorophosphorylmonophosph(v)azane.A reaction mechanism is proposed which accounts for the formation of all four products.