Preparation,Spectroscopic and Structural Investigations of Spiro Derivatives of Hexachlorocyclotriphosphazatriene |
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| Authors: | Sorab R Contractor Michael B Hursthouse Harold G Parkes Leyl[acaron] S Shaw Robert A Shaw Hamza Yilmaz |
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| Institution: | 1. Department of Chemistry , Birkbeck College, (University of London) , Malet Street, London, WC1E 7HX, U.K.;2. Department of Chemistry , Queen Mary College, (University of London) , Mile End Road, London, El 4NS, U.K.;3. Department of Chemistry , Birkbeck College, (University of London) , Malet Street, London, WC1E 7HX, U.K.;4. Department of Chemistry , Queen Mary College, (University of London) , Mile End Road, London, El 4NS, U.K. |
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| Abstract: | Abstract Mono-(N3P3Cl4Y2), bis-(N3P3Cl2Y4) and tris-spiro derivatives (N3P3Y6) have been prepared with ethylene, 1, 3-propylene and 1,4-butylene glycols (Y2 = glycol residue). The 1H NMR spectra of mono- and tris-derivatives are relatively simple; those of the bis- very complex due to the intrinsic asymmetry of the methylene protons. This effect is made use of in studying the replacement pattern of N3P3Cl4 O (CH2)3O] with primary and secondary amines. Homonuclear 1H decoupling simplifies the spectra and allows an unambiguous distinction to be made between the different isomeric possibilities of the bis amino derivatives N3P3Cl2R2 O(CH2)3O] where R = amino residue. Primary amines give geminal, secondary amines nongeminal trans-derivatives. The trans-structure of the bis-pyrrolidino derivative has been confirmed by X-ray crystallography. |
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