Aminophenoxyphosphazenes and a process for producing same

Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus esters

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C07F 924

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047452064

ABSTRACT:
This invention relates to phenoxy- and isopropoxyaminophenoxycyclotriphosphazenes and to a process for their preparation. The process comprises reacting R-chlorocyclotriphosphazene with an inorganic salt of aminophenoxide. The reaction takes place in the presence of an inert organic solvent and at a temperature within the range of from about 20.degree. C. to about 150.degree. C.

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Kajiwara et al., "Phosphonitrilic Chloride: 23, Substitution Reaction of Phosphonitrilic Chloride Trimer with Sodium Hydroxymethylphenolate and Polymerization of Substitution Products", Polymer, 1975, vol. 16, Jan. 21-24.
Kumar, Devendra, et al., "High-Strength Fire-and Heat-Resistant Imide Resins Containing Cyclotriphosphazene and Hexafluoroisopropylidene Groups," Journal of Polymer Science, vol. 22, John Wiley & Sons, Inc. (1984), pp. 927-943.
Kumar, Devendra, "Polybismaleimide Containing Tetrakisphenoxycyclotriphosphazenes," Journal of Polymer Science, vol. 23, John Wiley & Sons, Inc. (1985), pp. 1661-1670.

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