96183-43-6Relevant articles and documents
Synthesis of new tetraethyl(N-alkyl-1-aminoethan-1,1-diyl)bisphosphona-tes and ESR analysis of chemical exchange of derived nitroxides of acyclic aminobisphosphonates
Olive, Gilles,Rockenbauer, Antal,Rozanska, Xavier,Jacques, Alain,Peeters, Daniel,German, Anton
, p. 2359 - 2369 (2007)
The synthesis and the full characterization of two new linear bisphosphonates (tetraethyl(N-tert-butyl-1-aminoethan-1,1-diyl)bisphosphonate and tetraethyl(N-sec-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.