Epimeric mixtures of isoxazolidine derivatives were investigated by 1H NMR spectra obtained in the presence of lanthanide shift reagents. The NMR signals of all the components contained in a mixture of 2,3‐diphenyl‐5‐carboxymethylisoxazolidines were identified and the LISCA computer program enabled the stereochemistry of the different isomers to be established. Copyright © 1984 Wiley Heyden Ltd.
1H NMR separation of epimeric mixtures by lanthanide shift reagents: Analysis of some isoxazolidine derivatives
Bucci, P.;Chidichimo, G.;Liguori, A.;UCCELLA, Nicola Antonio
1984-01-01
Abstract
Epimeric mixtures of isoxazolidine derivatives were investigated by 1H NMR spectra obtained in the presence of lanthanide shift reagents. The NMR signals of all the components contained in a mixture of 2,3‐diphenyl‐5‐carboxymethylisoxazolidines were identified and the LISCA computer program enabled the stereochemistry of the different isomers to be established. Copyright © 1984 Wiley Heyden Ltd.File in questo prodotto:
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