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Original Articles

The Synthesis of Hexaphenylcyclotriphosphazene in Improved Yield

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Pages 2875-2881 | Received 12 Jan 2008, Accepted 28 Feb 2008, Published online: 10 Oct 2008
 

Abstract

The reaction between phenylmagnesium bromide and hexachlorocyclotriphophazene (N 3 P 3 Cl 6 ) ( 1 ) was reinvestigated for the synthesis of hexaphenylcyclotriphosphazene (N 3 P 3 Ph 6 ) ( 2 ) in high yield. The reaction is complete within two weeks at room temperature using toluene as solvent. When the reactants (PhMgBr and N 3 P 3 Cl 6 ) were employed in a 6:1, 36:1 and 72:1 molar ratio, compound 2 was obtained in 2.6%, 14%, and 33.4% yield, respectively. The formation of N 3 P 3 Cl 6 ( 2 ) during the reaction was followed by thin-layer chromatography. Compound 2 was characterized by elemental analysis, IR, UV-VIS, 1 H, 13 C, and 31 P NMR spectroscopy as well as by mass spectrometry.

Acknowledgments

We thank the Harran University Research Fund (Project No:293) and Scientific and Technical Council of Turkey (TBAG-153) for support.

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