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DETERMINATION OF THE ENANTIOMERIC COMPOSITION OF CHIRAL Δ-2-OXAZOLINES-1,3 BY 1 H AND 19 F NMR SPECTROSCOPY USING CHIRAL LANTHANIDE-SHIFT REAGENTS

✍ Scribed by Cherton, J.-C.; Beaufour, M.; Menguy, L.; Merelli, B.


Book ID
120339598
Publisher
Taylor and Francis Group
Year
2002
Tongue
English
Weight
233 KB
Volume
35
Category
Article
ISSN
0038-7010

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Determination of the enantiomeric purity
✍ J. Belleney; C. Bui; F. J. Carriere 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 481 KB

## Abstract The enantiomeric purities of disubstituted β‐lactams were determined by ^1^H and ^13^C NMR spectroscopy using tris[3‐(trifluoromethylhydroxymethylene)‐d‐camphorato]europium(III), Eu(tfc)~3~, as a chiral shift reagent. Using a [Eu(tfc)~3~]/[lactam] ratio of 0.5, most of the resonances we