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Direct Determination of the Enantiomeric Purity or Enantiomeric Composition of Methylpropionates Using a Single Capacitive Microsensor

✍ Scribed by Kurzawski, Petra; Bogdanski, Anja; Schurig, Volker; Wimmer, Reinhard; Hierlemann, Andreas

Book ID
127376720
Publisher
American Chemical Society
Year
2009
Tongue
English
Weight
711 KB
Volume
81
Category
Article
ISSN
0003-2700

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Determination of the enantiomeric purity
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## 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