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Trifluoroacetic acid, A 1H-NMR shift reagent for alkaloids

✍ Scribed by J. Schripsema; R. Verpoorte; A.Baerheim Svendsen

Book ID
104218656
Publisher
Elsevier Science
Year
1986
Tongue
French
Weight
220 KB
Volume
27
Category
Article
ISSN
0040-4039

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## Abstract The equimolar mixtures of typical lanthanide shift reagents such as Eu(fod)~3~, Pr(fod)~3~ or Yb(fod)~3~ with silver trifluoroacetate, previously used to induce paramagnetic shifts in the ^1^H NMR spectra of alkenes, have been successfully applied to simple aromatic hydrocarbons such as