40678-60-2Relevant articles and documents
A new route to the phosphazene polymerization precursors, Cl3P=NSiMe3 and (NPCl2)3
Allcock, Harry R.,Crane, Chester A.,Morrissey, Christopher T.,Olshavsky, Michael A.
, p. 280 - 283 (2008/10/08)
An improved synthesis of the phosphazene polymerization precursors, hexachlorocyclotriphosphazene, (NPCl2)3 (1), and Cl3P=NSiMe3 (2) is reported. The addition of PCl5 to N(SiMe3)3 in methylene chloride at 40 °C produced a mixture of phosphazenes which contained 76% of 1. However, the addition of N(SiMe3)3 to PCl5 in methylene chloride at 0 °C, followed by the addition of hexane, provided 2 in 40% yield. The mechanism of the reaction is discussed.