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Umbelliferose from Cachrys ferulacea Seeds: Determination of the Sugar Sequence by NMR 2D-COLOC Technique

L Pistelli1, A Marsili, I Morelli

  • 1Istituto di Chimica Organica della Facoltá di Farmacia, Via Bonanno 33, I-56126 Pisa, Italy.

Planta Medica
|April 1, 1990
PubMed

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Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...