ISSN:
0749-1581
Schlagwort(e):
Long-range CH correlation
;
Double quantum coherence correlation spectroscopy
;
DQCOSY
;
Veratridine
;
Cevadine
;
Veratrine
;
Zero quantum coherence correlation spectroscopy
;
ZQCOSY
;
COSY
;
One-bond CH correlation
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The long-range CH correlation NMR experiment (with decoupling of modulation of intensities due to one-bond couplings during refocusing) and the double quantum coherence correlation spectroscopy (DQCOSY) experiment were used, together with the standard one-bond CH correlation and COSY spectra, for complete 13C and 1H spectral peak assignments of veratrine (a 2:1 mixture of cevadine and veratridine). The long-range CH correlation experiment determined the long-range CH connectivity network, thus indirectly providing carbon-carbon connectivity. The DQCOSY experiment proved to be a complementary technique to the standard COSY experiment in unraveling and/or confirming proton-proton connectivities in this highly crowded proton spectrum.
Zusätzliches Material:
8 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/mrc.1260261109
Permalink
