ORBi: Olive Gilles - Synthesis of New Tetraethyl(N-alkyl-1-aminoethan-1,1-diyl)bisphosphonates and ESR Analysis of Chemical Exchange of Derived Nitroxides of Acyclic Aminobisphosphonates.

Reference : Synthesis of New Tetraethyl(N-alkyl-1-aminoethan-1,1-diyl)bisphosphonates and ESR Analys...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/86623

Title :	Synthesis of New Tetraethyl(N-alkyl-1-aminoethan-1,1-diyl)bisphosphonates and ESR Analysis of Chemical Exchange of Derived Nitroxides of Acyclic Aminobisphosphonates.
Language :	English
Author, co-author :	Olive, Gilles [Université de Liège - ULg > > Gembloux Agro-Bio Tech >]
	Rockenbauer, Antal [> > > >]
	Rozanska, Xavier [> > > >]
	Jacques, Alain [> > > >]
	Peeters, Daniel [> > > >]
	German, Anton [> > > >]
Publication date :	2007
Journal title :	Phosphorus, Sulfur & Silicon & the Related Elements
Publisher :	Taylor & Francis Ltd
Volume :	182
Issue/season :	10
Pages :	2359-2369
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	1042-6507
Keywords :	[en] Bisphosphonates ; diphosphorylation ; ESR ; McConnell equation ; nitroxide ; theoretical calculations
Abstract :	[en] The synthesis and the full characterization of two new linear bisphosphonates(tetraethyl(N-tert-butyl-1-aminoethan-1,1-diyl)bisphosphonate and tetraethyl(Nsec-butyl-1-aminoethan-1,1-diyl)bisphosphonate), and the first analysis of the ESR spectra of the corresponding nitroxides is reported. The preliminary results of theoretical calculations on model compounds suggest a small B0 (in the McConnell equation). The results of bisphosphonate ester and bisphosphonic acid are similar. The discrepancies of P coupling for the diphosphorus compound stems from B2 that is different when the dihedral angle is larger than 90◦.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/86623

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