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Bicyclic Phosphazenes Derived from (Amino) Cyclotetraphosphazenes

Krishnamurthy, SS (1989) Bicyclic Phosphazenes Derived from (Amino) Cyclotetraphosphazenes. In: Phosphorus, Sulfur, and Silicon and the Related Elements, 41 (3-4). pp. 375-391.

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Official URL: http://www.informaworld.com/smpp/795382159-8855186...

Abstract

Amination reactions of 2,6-bis(primary amino)cyclotetraphosphazenes yield not only the expected (amino)cyclotetraphosphazenes but also novel trans-annular bridged bicyclic phosphazenes by an intramolecular substitution pathway. In addition, resins are formed in some reactions by an intermolecular condensation. The effect of substituents attached to the phosphazene ring, the attacking nucleophile and solvent on the formation of the trans-annular P-N-P bridge is considered in detail in relation to plausible reaction mechanisms. Analytical separation of bicyclic phosphazenes by high performance liquid chromatography (HPLC) on a reverse phase silica column is demonstrated. Structural features of bicyclic phosphazenes and salient aspects of their NVR spectroscopic data are discussed.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 25 Aug 2010 06:08
Last Modified: 25 Aug 2010 06:08
URI: http://eprints.iisc.ernet.in/id/eprint/31393

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