| Autor: |
Axt, Mariane, Alifantes, João, Costa, Valentim Emílio Uberti |
| Zdroj: |
Journal of the Chemical Society, Perkin Transactions 2; December 1, 1999, Vol. 1999 Issue: 12 p2783-2788, 6p |
| Abstrakt: |
1H and 13C NMR is used to study the effects on a set of racemic polycyclic compounds of the application of the chiral shift reagents europium(III) tris[3-(trifluoromethylhydroxymethylene)-(+)-camphorate] and europium(III) tris[3-(heptafluoropropylhydroxymethylene)-(+)-camphorate]. The study compares the chiral shift reagents to find the conditions resulting in optimum enantiomeric (ΔΔδ) and spectral resolution (Δδ). Of the two reagents Eu(hfc)3 proved to be the more efficient. In addition, the effect of the achiral lanthanide shift reagent Eu(fod)3, used in combination with the chiral lanthanide shift reagents, was investigated. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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