Formation of Bicyclic Phosphazenes via the Reactions of Methyl- and Phenylmagnesium Chloride with Hexachloro-cyclotriphosphazene

摘要

This reaction provides a facile, high yield method for the synthesis of bicyclophosphazenes, species that are difficult to prepare by other routes. The work shows for the first time that reactions between (NPCl2)3 and Grignard reagents can yield simple mixtures of well-defined products. The phosphazene ring-coupling reaction may be a prototype for the skeletal coupling reactions that bring about the crosslinking of phosphazene high polymers when (NPCl2)n reacts with Grignard reagents. (Author)