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Use of selective excitation techniques for the rapid analysis of 13 C NMR data for enriched carbohydrates
Author(s) -
Bossenne V.,
Firmin P.,
Perly B.,
Berthault P.
Publication year - 1990
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.1260280211
Subject(s) - chemistry , monosaccharide , coupling constant , scalar (mathematics) , excitation , molecule , j coupling , computational chemistry , analytical chemistry (journal) , nuclear magnetic resonance spectroscopy , biological system , stereochemistry , chromatography , organic chemistry , physics , quantum mechanics , geometry , mathematics , biology
One‐dimensional selective scalar transfer experiments are presented for the analysis of 13 C NMR data for multilabelled molecules. ‘Classical’ 13 C COSY experiments rapidly show limitations when a complete determination of remote coupling constants is required. Conversely, combination of 1D COSY and RELAY affords all the required information very rapidly and accurately. Three 13 C‐labelled monosaccharides exhibiting different degrees of spectral complexity are used to illustrate the merits of these techniques.