Abstract
In this study, regio-selectivity in the nucleophilic substitution reactions of a mono ansa fluorodioxycyclotriphosphazene derivative with diols has been investigated. The cyclotriphosphazene derivative, N3P3Cl4[OCH2(CF2)3CH2O] (1), was reacted with the disodium salts of 1,3-propanediol and tetraethyleneglycol in THF solution at a 1:1M ratio and eight new products (2–6, 7a, 7b and 8) were formed. These products were separated and characterized by elemental analysis, mass spectrometry, 1H and 31P NMR spectroscopy. The crystal structures of 2, 3, 5, 6 and 7a have been characterized by X-ray crystallography. The spiro derivatives (3, 6) were formed as the major product in the reactions of compound 1 with both diols.
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