( S )-Naproxen® and ( S )-Ibuprofen® chlorides—convenient chemical derivatizing agents for the determination of the enantiomeric excess of hydroxy and aminophosphonates by 31 P NMR
作者:Katarzyna Błażewska、Tadeusz Gajda
DOI:10.1016/s0957-4166(02)00186-6
日期:2002.5
The acid chlorides of (S)-Naproxen(R) and (S)-lbuprofen(R) are shown to be convenient chiral derivatizing agents for determination of the enantiomeric purity of diethyl 1-hydroxy- and 2-hydroxyalkylphosphonates as well as their aminoalkylphosphonate analogues by means of P-31 NMR spectroscopy. Correlation between the phosphorus chemical shift and the absolute configuration of the 1-hydroxyalkylphosphonate is also discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.
VARLET, J. M.;COLLIGNON, N.;SAVIGNAC, PH., TETRAHEDRON, 1981, 37, N 21, 3713-3721