Synthesis of Alkylphosphazenes via Copper-Phosphazene Intermediates

Harry R. Allcock, Paul J. Harris, Mark S. Connolly

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A new reaction route has been developed for the synthesis of a hitherto inaccessible series of 1,1-dialkyltetrachlorocyclotriphosphazenes, N3P3Cl4RR’ (III), where R = CH3, C2H5, n-C3H7, n-C4H9, i-C4H9, t-C4H9, or allyl and R’ = CH3, C2H5, n-C3H7, n-C4H9, or allyl. The high-yield route involves the interaction of hexachlorocyclotriphosphazene, (NPCl2)3, with alkyl Grignard reagents in the presence of [n-Bu3PCuI]4, followed by treatment with alkyl halides. The structural characterization of these compounds by NMR and mass spectrometric techniques is discussed, together with the reaction mechanism.

Original languageEnglish (US)
Pages (from-to)11-16
Number of pages6
JournalInorganic chemistry
Issue number1
StatePublished - Jan 1981

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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