Structural elucidation of germine esters isolated from  Veratrum nigrum  L. Total assignment of  1 H and  13 C nuclear magnetic resonances by two‐dimensional NMR techniques | Zendy

Han Xiuwen | Zendy; Grossmann Peter | Zendy; Rüegger Heinz | Zendy

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Structural elucidation of germine esters isolated from Veratrum nigrum L. Total assignment of 1 H and 13 C nuclear magnetic resonances by two‐dimensional NMR techniques

Author(s) -

Han Xiuwen,

Grossmann Peter,

Rüegger Heinz

Publication year - 1991

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260290203

Subject(s) - homonuclear molecule , chemistry , heteronuclear molecule , nuclear magnetic resonance spectroscopy , two dimensional nuclear magnetic resonance spectroscopy , spectroscopy , stereochemistry , spectral line , nuclear magnetic resonance , crystallography , molecule , physics , organic chemistry , quantum mechanics , astronomy

The application of two‐dimensional phase‐sensitive COSY, ROESY and 13 C– 1 H shift correlation spectroscopy in the structural elucidation and stereochemical assignment of the steroidal alkaloids 15‐(2‐methylbutyryl)germine, 3‐(2‐hydroxy‐2‐methylbutyryl)‐15‐(2‐methylbutyryl)germine and 16‐(2‐methylbutyryl)germine is reported. It is shown that two‐dimensional 13 C– 1 H heteronuclear long‐range correlation spectroscopy is an invaluable method for the stereochemical assignment of proton resonances which overlap in 1 H NMR and homonuclear correlation spectra.

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