Synthesis, Crystal Structure and Thermal Properties of Phosphorylated Cyclotriphosphazenes

Nicolas Lejeune 1 Isabelle Dez 1 Paul-Alain Jaffres 2 Jean-Fançois Lohier 1 Pierre-Jean Madec 1 Jana Sopkova-De Oliveira Santos 3
1 LCMT - Laboratoire de chimie moléculaire et thioorganique
2 CEMCA - Chimie, Electrochimie Moléculaires et Chimie Analytique
3 CERMN - Centre d'Etudes et de Recherche sur le Médicament de Normandie
Abstract : A convergent approach for the incorporation of arylphosphonate moieties into the cyclotriphosphazene unit is described. The synthesis is based on the reaction of hexachlorocyclotriphosphazene with diethyl 4-hydroxyphenylphosphonate in the presence of anhydrous potassium carbonate. This reaction is characterised by substitution of the chloride atoms, which thus produces the hexaarylphosphono derivative in good yield. The product of this reaction is fully characterised, including a single X-ray diffraction study. The hydrolysis of the hexaphosphonate compound to its hexaphosphonic acid analogue is reported. All products were characterised by NMR and IR spectroscopy and mass spectrometry. The thermal stability and degradation behaviour of these new compounds were investigated by thermogravimetric analysis.
Keywords : Cyclotriphosphazenes Phosphonates Thermal properties
Type de document :
Article dans une revue
European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2008, 2008 (1), pp.138 - 143. 〈10.1002/ejic.200700785〉
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Contributeur : Nicolas Renard <>
Soumis le : vendredi 1 septembre 2017 - 11:54:32
Dernière modification le : jeudi 19 juillet 2018 - 12:04:02

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Nicolas Lejeune, Isabelle Dez, Paul-Alain Jaffres, Jean-Fançois Lohier, Pierre-Jean Madec, et al.. Synthesis, Crystal Structure and Thermal Properties of Phosphorylated Cyclotriphosphazenes. European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2008, 2008 (1), pp.138 - 143. 〈10.1002/ejic.200700785〉. 〈hal-01580304〉

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